add demo image

start beginning-of-music-point at 1, because that's the lowest point in a buffer

add more options to make-note, make-tone.

bind t to a new function #'play-this-beat, which plays the beat at point.

make //toggle play the current beat, if the music is not playing

add a variable for the root frequency.

add documentation to zmusic//current-scale

only have capital letters in hex-lookup-table, and make hex-digit-to-number upcase its argument

GPLv3+

extract the current scale to a variable.

remove no-longer-needed comments

don't highlight the opening space of a line

move tests to a separate file.

remove testing functions

correct 'one bytes' -> 'one byte'

fix bug that plays the first beat twice when counting

make make-tone able to be big- or little-endian.

indent some code properly.

add keyword arguments so functions work either big- or little-endian.

fix missed use of //count-beat, post-rename