I found this music sheet on the internet for my training to play classical guitar and now i'am confused what's "6/6 CI" mean in the music sheet? (Canon in D transposed to C for guitar)
UPDATE
Thankyou for your answer @Aaron, and one more question about this, is it true "C" to be used is in this screenshot? but the orange line move to fret number 1 because "I" on the 6/6 CI indicates fret 1 and "C" on the 6/6 CI indicates chord C and 6/6 mean press all strings, so "6/6 CI" is like chord "F" ?
