The white keys on the piano have single letter names:
C, D, E, F, G, A, B
The black keys require a minimum of 2 letters to "spell" their names :
Db, Eb, Gb, Ab, Bb
C#, D#, F#, G#, A#
Is anybody aware of any common single-letter names for the black notes? I have been playing around with using
H, I, J, K, L
But I don't love it and thought I'd see if anybody knew of a convention that already exists.