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When I see classical sheet music I don't see the chords named, were chords not used back then? And if they were, do the notes that are under a bass clef generally outline the shapes of chords?

I only see chords when I look up a classical song on YouTube and type "harmonic analysis" along with it, for example Harmonic Analysis: Beethoven Moonlight Sonata

Dom
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    See figured bass https://en.wikipedia.org/wiki/Figured_bass – Dom Aug 20 '18 at 16:24
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    Of course chords were *used,* but in the Baroque era there was no use of "chord names" in the modern sense because they hadn't been invented yet! In the classical era chords were used in many ways that can't be represented easily by modern chord symbols. Composers just wrote the all notes that were to be played - too simple, huh??? –  Aug 20 '18 at 17:10
  • At that time, composers wrote just what they wanted playing, and performers played just that. Guitar accompaniment (which is mostly what the chords are for) wasn't commonplace. – Tim Aug 20 '18 at 17:51
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    @foreyez well, you wouldn't find a video that shows the chords of a piece which can't be analyzed in terms of chords, would you? — Seriously, piano solo music tends to be easier to analyse because chords are convenient to play on piano, so in particular the popular favourites are often quite straightforward. Well-arranged orchestral music, but also more difficult keyboard music in particular by Bach, has much more individual-voice movement. It is still usually possible to analyze it with roman numerals, but don't expect to be able to approximate the pieces by just playing those chords. – leftaroundabout Aug 20 '18 at 21:46
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    Is this also something to do with the concept of arrangements and improvisation in modern music? Since now with YouTube, etc. by simply notating chords a beginner, advanced, or anyone learning or familiar with an instrument can get and play the gist of a song without having to know in detail the sheet music itself? Not saying that's bad per se since as I mentioned this helps with alternative sometimes on-the-fly arrangements and re-arrangements plus giving wide scope for improvisation no matter the instrument? – SaltySub2 Aug 21 '18 at 03:01
  • I am shocked that this got so many votes. Since with perhaps the exception of piano solo music, chords reach across instruments, how would you expect a chord to be "named" in the score? – Carl Witthoft Aug 21 '18 at 14:27
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    They are written, as a stack of notes. –  Aug 21 '18 at 15:45
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    @CarlWitthoft I think it is a reasonable question for a beginner who may only have seen simple representations of music scores. – Doktor Mayhem Aug 21 '18 at 15:56
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    I hope you don't mind I made the title clear in terms of what you're actually asking about. Writing three or more note heads on one or more staves is writing a chord, and that is done very often in classical music. Writing something like "Em/G" above the staff is writing a chord **name**, which is what you're asking about. I understand if you want to revert my edit, but I think it clarifies the title. – Todd Wilcox Aug 21 '18 at 20:24
  • @user19146 - Chords were both used and named in the baroque era. In modern editions there is no need to name them because players just play what they see. In baroque times, it was common to use symbols for chords - in fact the same symbols that session musicians often use today. They refer to cords by Roman numerals - these have the advantage of easy transposition to different keys. – chasly - supports Monica Jan 04 '21 at 20:36

8 Answers8

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In the vast majority of classical music, the player is tasked with playing exactly the notes that the composer wrote. It's not very important for the player to understand the theory behind the piece, and a great number of classical players know little to no theory (at least until they reach conservatory, if they go that route) and don't suffer for it.

Let's consider the well known Mozart piano sonata in C:

Mozart K.545 first 4 measures

And let's consider adding chord symbols to it:

enter image description here

Frankly, these chord symbols add nothing. So what if I know that the first measure is C? I still have to play the notes that Mozart wrote. The only thing they do is distract me.

MattPutnam
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  • so would you say the majority of classical music could be notated with chords just like you did above? or are there situations where chords are simply "unknown"? –  Aug 20 '18 at 18:09
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    Sure, most classical music is built of fairly ordinary chords. There are plenty of examples of strange chords that are ambiguous (see: Tristan chord), but those exist in pop music too (see: Horse With No Name). And then there's atonal music. – MattPutnam Aug 20 '18 at 18:15
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    Actually the chords _would_ help me decipher the left hand quickly enough to play here -- but I'm an amateur with terrible sight reading. I'm used to playing from lead sheets, though, and knowing which chord would let me figure out which inversion matches the height of the notes without counting out the vertical position of each of them separately. – hmakholm left over Monica Aug 20 '18 at 21:30
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    @HenningMakholm that's really only when you don't have enough practice in sight reading. Classical musicians have a “dots-only reading mode” where you don't think at all about what notes it is you're playing, you just see the dots and your fingers are already there. More complex stuff is almost impossible to sight-read in any other way. I've occasionally tried making difficult cello parts clearer by writing out chords on top (as I also play in bands a lot, usually not using anything but lead-sheets). But for classical music, it does not help, I always ended up looking more at the dots. – leftaroundabout Aug 20 '18 at 21:54
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    And just consider how much wasted energy it would be to provide chord symbols for each performer of a large orchestra... by hand! – elliot svensson Aug 20 '18 at 22:01
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    @leftaroundabout perhaps just a quirk of how we learned, but my piano teacher always taught me to spot the chords first and I still do it when sight reading stuff, even though I don't play as much anymore. – mbrig Aug 20 '18 at 22:11
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    "So what if I know that the first measure is C? I still have to play the notes that Mozart wrote." why? if you know the chord you can play the left hand pattern in many different ways. I saw on youtube people improvising on classical music. for example the chord progression of Canon in D. if you knew the progression was I V vi iii IV I IV V it would be alot easier to improvise and modulate the keys than if you just knew the notes. –  Aug 21 '18 at 02:51
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    @foreyez What he was saying is that in classical music as it is originally written, one is supposed to play it as it is written. What you're talking about is re-arrangement and improvisation, for which, then, fair enough, chords can be helpful. But for ABRSM (piano) music training as posters indicate above, it's "read the dots, practice the dots, play the dots". This of course is an oversimplification since for classical piano there are other things you can do in playing (phrasing? force?) but you're AFAIK you have to "hit the notes" exactly as it's written. That's how classical music rolls :) – SaltySub2 Aug 21 '18 at 03:07
  • "I still have to play the notes that Mozart wrote." That's what people from the 21st century believe about classical music, and not accurate to the time it was written. Still to Mozart's time and long after, improvisation and embellishment was common. – Turion Aug 21 '18 at 09:16
  • @Turion: Performance practice varied a lot; in the Baroque era, a lot of improvised embellishment was certainly standard (and the notation of figured bass etc. reflects that), but by Mozart’s time, much less embellishment was expected, and only in certain constrained ways and parts of a piece. – PLL Aug 21 '18 at 11:50
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    @foreyez For classical music, the grade system enforces a rule that improvisation is forbidden until the student has fully mastered technique (essentially grade 7). Until that point, any variation from the printed notes is punished. Improvisation forms part of grade 8, but most players never reach that point under the classical system, so most classically-trained amateurs cannot improvise; and those that do are advanced enough that they don't need chord symbols. The newly-established grades for jazz and rock do encourage improvisation, but the classical world simply doesn't. – Graham Aug 21 '18 at 12:08
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    @PLL: While improvisation of course was less prevalent in the 18th century, I would say that how much less so is a matter of scholarly debate. It seems that improvising on opening themes of concertos was pretty common in Mozart's time; the sparsity of the slow movement theme in his D minor concerto practically begs for it. Beethoven's famous dictum that a cadenza in his Emperor concerto should be played as written suggests that the practice of improvising cadenzas at least was prevalent into the 19th century. – BobRodes Aug 21 '18 at 14:30
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    FWIW, I annotated a copy of the Rachmaninoff c minor prelude with chord names in order to help my playing. Such a thing isn't necessarily totally useless, but it's not a _necessary_ part of the description of the music. Compare the fingering notations editors sometimes add to classical sheet music. – David K Aug 21 '18 at 17:20
  • @Graham on the other hand, with Pachelbel's canon, any chords are either improvised or editorial. There *are* no printed notes for keyboard (or lute, guitar, etc.) aside from the bass note. – phoog Aug 21 '18 at 19:37
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    @foreyez Pachelbel did not write out the chords for the canon. The oldest surviving source is a manuscript in which the accompaniment is represented by nine quarter notes: D3, A2, B2, F#2, G2, D2, G2, A2, D3, which is repeated throughout by implication. The performer improvising chords for that part using the principles of figured base (linked on a comment to your question) would have to listen carefully (or perhaps read from a score) to detect the slight variations in the chords that are dictated by the melody parts. Knowing which chord to use was an expected skill, so no need to write them. – phoog Aug 21 '18 at 19:52
  • Ack, figured *bass.* I need new glasses! How fitting that the target of that comment was @foreyez. I will take the opportunity afforded by this correction to add that in Pachelbel's day the available options for harmonizing that bass line were rather more limited than they are today. Also, a modern lead sheet being *melody* plus chords, rather than *bass line* plus chords, means that there is even more room to choose different harmonizations today, which is why composers are more explicit. (Many "figured" bass parts were left unfigured because the implied chords were "obvious.") – phoog Aug 24 '18 at 20:06
  • @Turion we can only guess at what Mozart would have thought about someone playing the C major sonata with a different figuration in the left hand. But one point that nobody seems yet to have made is that there was no need to write out the chords as we do today because anyone reading the piano score would be expected to know that the first measure is C major and the second G7. (But even if you don't, all the notes are there, and nothing stops you from playing them in a different order or a different octave.) – phoog Jan 04 '21 at 20:21
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Disclaimer: I omit a bunch of hedging about what I'm referring to when I say "classical music" below; think Bach or Brahms

It sounds like you might be coming from a pop/rock background and are familiar with, say, guitar tabs as a way of notating the structure of a song. Other answers have pointed out that:

  • in classical music, notation is almost always (from Bach to present day) very precise and labeling chords would be superfluous; the performer just plays the notes on the page (hopefully artfully)
  • most music in the classical repertoire can be annotated with (sometimes simple, other times very complex or ambiguous) chord structure. We'd call this harmonic analysis, and it can be a creative process itself (it's something you'd study extensively if you were studying music in college)
  • figured bass was a practice for notating semi-improvised parts, and is similar to guitar tabs in spirit

Harmony and harmonic analysis is a really big subject but there are a couple things we can say about popular music, harmony, and notation that might be helpful:

First, the understanding of what a chord really is and what it does is really pretty different between popular music and classical music (think Brahms, say). Some of this is a little tangential to your question:

  • in classical music chords are understood to be a sequence of stacked thirds starting from some note of the scale in the key we're inhabiting (or an adjacent key, a secondary dominant chord being a simple example). The way the notes of the chord are laid out across instruments or octaves (how the chord is voiced) is usually a secondary concern and doesn't affect fundamentally how we understand what's happening harmonically in a piece of music. (that's not quite true: we do tend to label the inversion of chords, that is the note that's in the bass. The implication here is that, yes, often the fundamental note of the chord is the lowest note)
  • relatedly, classical music is characterized by functional harmony, that is different chords strongly want to proceed on to other certain types of chords (a IV "wants" to go to a V chord, which wants to resolve to the I, etc). This sort of pull underpins the drama and emotional pull of most classical music, and composers rely on the listener to have internalized this sort of musical language
  • in contrast popular music tends to be much more loose about the way chords are expected to behave; e.g. both V - IV - I, and IV - V - I are ubiquitous progressions in pop music, but the former simply wouldn't make sense in a classical piece: it would be as if the air just sort of leaked from a balloon.
  • Relatedly, pop music tends to use a cyclical chord progression that repeats every 4 bars say; in general this progression can be almost anything. In contrast the structure of chords in a classical piece tends to be longer and more irregular, as the composer leads the listener away from tonic and back again, playing with their expectations based on their familiarity with the language of functional harmony
  • Guitarists think of chords in an idiomatic way, that is in a way that is closely tied to the mechanics of the instrument itself: e.g. voicing is of first-class importance, new "chords" arise from needing to allow open strings to ring and it produces a nice effect, etc

Getting back more directly to your question: the way that pop/rock guitarists label chords is in a couple important ways different from the way I would write chords when analyzing a piece by Brahms (say):

Guitarists (and also jazz musicians, where I think a lot of this language comes from) give labels to "chords" which in classical music we don't think of as chords. e.g. "sus" chords like a "C sus4" or whatever; in classical harmonic analysis we don't think of this as a chord; we'd call it a "C major chord" and then talk about a suspension, that is a non-chord tone.

In classical music these suspended notes tend to get resolved; they create tension by being out of place for a moment. The implication is that the listener hears a C major chord, and hears that there's a dissonance. In contrast, in pop music these chords don't need to be passing or resolve, they can just sit there and be an interesting color, effect, or maybe play with the vocal line in an interesting way.

There is a lot of language in classical music for different sorts of non-chord tones, e.g. passing tones, appoggiaturas, etc. If you analyze Bach's 4-part chorales you can see all of these. He'll even use idioms that involve a cascade of suspensions which pass through many chords in complex ways and where at no point can you take a vertical segment and find a pure "unadulterated" chord.

The point I'm trying to emphasize is that a harmonic analysis of a piece of classical music (that is how we'd label it with chords) is often about the tension between what we expect to be hearing as a listener and what notes are being heard, and generally ignore how the chord is voiced or omit some notes that are sounding. Sometimes there are multiple valid interpretations.

I'm sorry this is getting long. Related important concept that should be higher up: counterpoint, the way that multiple melody lines interact to suggest some harmonic structure, i.e. to form chords and do playful things within that chord structure (non-chord tones, above). This is what you see distilled in Bach's chorales say.

Other eras and types of pieces are much less heavy on counterpoint, e.g. a simple Mozart piano piece or a Schubert song accompaniment might have a left hand that strongly outlines the chord structure of the piece, playing arpeggios or the I and V of the chord. It sounds like you're most familiar with that type of writing (and that's what's common in pop music).

elliot svensson
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jberryman
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Turn this around and ask "why are chord names, rather than the staff notations of the notes in the chords, so frequently used for written popular music and jazz but not for classical music?"

A typical amateur, around the campfire guitar player, for example, does not read music, but if you ask that person to play a "C chord" he or she knows where to put their fingers. Chord names are the most concise way of communicating the minimum information required.

The professional jazz musician, possibly using a fake book, knows many different ways to play any of the chords indicated by the cord name and how to use that knowledge to improvise on that harmonic structure. To this person the chords given are a suggestion, not something cast in stone.

Classical music is/was addressed to an population of musicians who are able to fluently read musical notation. It is also generally written with the idea that the exact melodic lines, harmony and instrumentation that the composer envisioned will be used. It is not 100% "cast in stone", since all music is interpreted, but the composer had a very detailed concept and requires a more detailed means of communicating it.

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Chords were obviously used; one needs to only to look and listen to see and hear that.

But in addition to Matt's great answer, another reason is that such chord labeling doesn't always fit in the music of the past. There are excerpts of Bach's polyphonic music especially that are not at all conducive to such reductive analysis.

Furthermore, a lot of popular music today is chord-based, meaning that it's much more conducive to this type of labeling.

(If there's popular music written today that is as polyphonic as Bach's, I'd be curious to see how they chose to notate it.)

Richard
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    I saw alot of harmonic analysis videos on youtube of classical pieces they seem to label the chords just fine... –  Aug 20 '18 at 19:05
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    Oh, I believe it. I'm just saying that there's some percentage of that repertoire that is not conducive to plain chord labeling. – Richard Aug 20 '18 at 19:06
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    @foreyez, yes classical music can be *analyzed* with chords easily enough, but the design of that particular style of music involves many different voices. The melody is often passed around from voice to voice. Analyzing the chordal structure does not take into account the way the different voices in the piece move. If you take out those voices and just play the melody with a chord underneath, the qualities that make classical music classical music will be lost. Classical melodies with chordal accompaniments can be found in some beginner books with "classic themes." They are lifeless. – Heather S. Aug 21 '18 at 02:23
  • @HeatherS. when you say the melody is passed around from voice to voice, do you mean the song modulates? if it remains in the same key then it should be just a straightforward melody no? –  Aug 21 '18 at 02:25
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    "Furthermore, a lot of popular music today is chord-based, meaning that it's much more conducive to this type of labeling." is quite pertinent. Today's music (not to say other periods didn't have it) is particularly favoured towards remixing, adaptation, improvisation, etc where you can play whatever notes you want. That's perhaps why @foreyez may see standard classical period notation and expectations perhaps, "antiquated". I feel your pain foreyez, almost every single piano class as a child LOL. My teacher taught me some Right Here Waiting chords (80's) but said "don't tell anyone!" – SaltySub2 Aug 21 '18 at 03:11
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    @foreyez, no I am not talking about modulation. That has to do with key, not voicing. And while *some* classical music is structured as a "melody accompanied by chords" that is not usually the case. The melody is incorporated into the harmony. You should learn how to do some structural analysis of classical music, not just harmonic analysis. And, btw, when I learned piano I learned all my chords (and scales, too) by the time I was 9. But for pianists who someday hope to do some accompanying and play any classical music, reading all the little dots quickly and correctly is essential. – Heather S. Aug 21 '18 at 11:00
  • There's a story that one of Bach's children started explaining the new concept of harmony to him, and he responded that that was very interesting, but he just didn't think that way. – BobRodes Aug 21 '18 at 14:34
  • @foreyez for a fairly simple and clear-cut example of the idea of passing a melody back and forth between voices, have a look at [this](https://www.youtube.com/watch?v=jEVQ7yHgaSM). – BobRodes Aug 21 '18 at 14:38
  • @HeatherS. so you're talking about counterpoint (?) where there is a melody on the right hand, and a melody on the left hand so it cannot be easily explained by just chords. what percentage of classical music is like that? –  Aug 21 '18 at 17:35
  • @foreyez It's all but impossible to give a percentage like that. – Richard Aug 21 '18 at 17:37
  • @Richard I meant a ballpark. is the majority of classical music melody+harmony, or melody+melody. you might as well answer because it will prevent me from doing some long research about this. ;> –  Aug 21 '18 at 17:40
  • @foreyez Sounds like you've got some research in your future, then! – Richard Aug 21 '18 at 17:41
  • @foreyez, you need to start looking at classical music scores yourself (include it all - piano, chamber music, orchestral scores) to get an idea about. Yes, I am talking about counterpoint, but in a very general way, not in a Baroque way. Counterpoint is even used when it is "melody accompanied by chords, so that the voicing underneath the melody has a certain movement to it. – Heather S. Aug 21 '18 at 19:19
  • @HeatherS. I was just looking at the B-flat minor prelude from book 1 of the WTC for another question. I would be interested to see that rendered in jazz-style chord symbols. – phoog Jan 04 '21 at 20:28
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The way to notate chords and inversions in Baroque times was as figured bass. Since that notation is in reference to the bass line and since the harmonic content and the inversions tend to change faster than current-day chord changes and are notated more specifically regarding the intended inversion, interpretation of the half-improvised accompaniment was more suited to keyboard instruments rather than guitars, today's primary target of chord notation.

Figured bass more or less went down with Bach since he tended to spell out everything explicitly rather than relying on the improvisation skills of the keyboard players.

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    Actually, the basso continuo would often be played by plucked instruments like a [Theorbo](https://en.wikipedia.org/wiki/Theorbo), so I'd think that point is moot. Do you have any source regarding your claim that figured bass stopped with Bach? – Turion Aug 21 '18 at 09:13
  • Haydn's earlier symphonies still had a basso continuo part, as did much of his early chamber music. See [this post](https://music.stackexchange.com/questions/318/why-was-basso-continuo-not-widely-used-after-the-baroque-period) for more information. – BobRodes Aug 21 '18 at 14:42
  • Bach made heavy use of figured bass. Don't confuse a through-composed keyboard work, which never had figured bass, with a continuo part, which almost always consisted only of a single staff with the bass/cello part. (In earlier times, it contained the notes of whatever the lowest part was that was playing at any given time, which is what led to the name _basso continuo:_ continuous bass, as opposed to the "real" bass part that dropped out from time to time.) – phoog Jan 04 '21 at 20:26
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You've received some great answers already, but I wanted to point out more specifically how only looking at chords cannot sufficiently describe how to perform pieces.

Assuming that "classical" music refers to all music in the common practice period as well as the 20th century, chords don't suffice for describing music entirely. One can find many examples of this in the 20th century. A great example of this is Ligeti's Nouvelles Aventures.

Henry Cowell, in Dynamic Motion, calls for playing chords which use the entire arm of a pianist (around 33 seconds):

As a much more extreme example, what if there aren't any pitches whatsoever? One can also look at Reich's Clapping Music:

Clarinetist
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    Although these are certainly examples of music that can't be captured with chord symbols, they're rather overkill, aren't they? – leftaroundabout Aug 21 '18 at 19:11
  • Related to @leftaroundabout's comment, I would add that whether this is true depends on what you mean by "sufficient." The chord symbols for "Begin the Beguine" leave out a lot of detail. Is a performance that complies with the symbols but omits the detail "sufficient"? For Begin the Beguine, in most contexts, yes. Why not for the Mozart sonata used as an example elsewhere, at least in some contexts? Why not perform that on the flute with a guitar strumming along? – phoog Jan 04 '21 at 20:33
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I'm surprised no one has mentioned tracker modules and tracker music yet.

https://en.wikipedia.org/wiki/Music_tracker

These types of programs were used to write the great TV series and classic video game tracks of the 1990's.

If you think the classical composers like Bach and Mozart were verbose in specifying every note (instead of oversimplified chords), tracker modules take this paradigm to a new level. A module defines a set of samples, and then the track itself invokes the samples when they are needed. Each sample could be associated with effects encoded in separate bytes as well, effectively dictating interpretation as well. The only problem was that different tracker module programs used different effect codes, which means that a module written for a specific program might be partially ruined if a different interpreter was used.

The chord paradigm fundamentally limits the composer into a small subset of possible music. From what I'm reading, the 2 main appeals of chord-based approaches are simplicity of composing and wide-open range of interpretation, both of which lend themselves readily to modern performing arts. This probably also accounts for why I've been seeing increasing complaints (from musicians) in various news articles over the years that modern music is becoming too unoriginal. In short, the chord approach has a low skill curve - you can make popular music quickly and easily but the "ceiling" on the music you can produce is rather low compared to classical or tracker-based approaches.

For those of you who say that music that doesn't fit in a chord framework is old-fashioned or excessively specified, I recommend listening to some of the 1990's classics by famous tracker module artists such as Alexander Brandon, Elwood, and Purple Motion. Something you will see a lot with the best of the tracker module artists is how they weave together at least 4 audio channels (percussion, bass, and 2 main instruments) - which arguably draws the line between modern "average" (percussion/bass/1 main instrument or voice) and "really good" composing. Weaving several main instruments or themes together was also done in the classical era (for example: 2-part inventions and 3-part sinfonias).

In the old days where you were limited to 4 audio channels (an artifact of the Commodore Amiga computer era), you couldn't even do a full chord parallel across audio channels because you'd eat 2 or 3 of them and leave no room for much else. Artists had to encode full chords into samples and invoke those. An example of this can be found in the tracker module "Space Debris" by an artist calling himself "Captain". If you watch the instrumentation in the Impulse Tracker version, you can see instruments named Chord1 Major and Chord1 Minor.

I'm curious to see what the classical composers would have come up with if they had access to modern digital audio workbench (DAW) or even tracker module software. I write my own tracker-style music in a modern DAW and it's hard enough composing with the complex 4-channel paradigm above. Writing the same on a character-cell tracker module program is definitely harder, and it takes even more skill to compose it on paper only with no computer.

user1258361
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    I don't even know how this remotely answers the question. but I won't downvote it since purple motion is a legend and so is the rest of future crew. –  Aug 21 '18 at 22:59
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Fundamentally, chord symbols can only describe music that one is already familiar with. Try it with a piece of music you have never heard before...... it is not possible to extract anything remotely meaningful or consistent.

sixString
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  • Can you explain what you mean? I'm not sure I follow; are you saying that I won't understand the chord symbol unless I already know the piece? – Richard Jan 04 '21 at 19:04
  • Mostly, I would be able to name chords of pieces I haven't heard. Likewise, I could probably come up with a figured bass that would yield that chord. (Maybe not the most efficient version though.) When I had a band, I would listen to music on the radio (no internet then) and write it down if we wanted to play it; other members could too. – ttw Jan 04 '21 at 20:07
  • I agree with this to a point, but traditionally chord symbols are not used in isolation to describe a piece of music purportedly in its entirety. Rather, they describe an accompaniment for a melody. And in fact lead sheets have a long history of being used successfully to describe pieces of music with a fair amount of consistency. Elements that are not specified, such as the figuration of the accompaniment, are areas in which jazz and popular musicians are expected to exercise their creativity, which is why lead sheets have been so successful in those genres. – phoog Jan 04 '21 at 20:39
  • @Richard I wonder whether this is about the many websites that give chords for songs without the melodies. If so, then yes, that is obviously quite useless to someone who is not already familiar with the tune. – phoog Jan 04 '21 at 20:42
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    This answer is incorrect. As long as the ***rhythm*** is given with the chords, anyone with reasonable skill can play along with a tune they have never heard before. Jazz musicians and session musicians do this all the time. Give them a chord sheet and away they go - no need to know the melody. – chasly - supports Monica Jan 04 '21 at 20:52
  • P.S. This type of playing is called *comping*. Here is an example of a chord sheet http://jamieholroydguitar.com/wp-content/uploads/2019/07/Ladybird-Chord-Chart-1024x727.png – chasly - supports Monica Jan 04 '21 at 21:05