(This is my first post in this community, I tried to search an answer about that basic question but it's not easy, so sorry if it is a duplicate)
Since the C Dorian scale contains the following notes:
C D D# F G A A#
And the D Phrygian contains:
D D# F G A A# C
And thus bacially the same notes. How is it possible to say about a track that is has been written in C Dorian or in D Phrygian ? More generally, how is it possible to say about a track it is in written in a particular mode without naming any key.
I ask that question because on this Wikipedia page you can find a sentence like:
Björk's "Army of Me" is a rare example of a pop song whose verse is written in the Locrian mode.
And I don't understand how it has been determined.