Hello!

I'v got a problem with an "if":

if (last_pitch ~ /[A-G]/) last_oc = length(last_pitch) * -1
else last_oc = length(last_pitch) - 1

last_pitch can be any characters from AA-GG, A-G, a-g, or aa-gg.
The "if" doesn't seem to be able to tell if the character(s) in last_pitch are upper-case or lower-case; that is, it always executes the first line, and never gets to the "else". A similar problem also occurs elsewhere in the program---it can't tell upper-case from lower-case. Is there a special way to indicate this?

Thanks!