coffee calculator

half-life (in hours. default: caffeine's, 5.7):
what time you're drinking (default: the current time.):
bedtime (default: midnight):
% you want by then (default: 25):

chord progression generator

generate chords with tones
avoid chords wider than one octave
avoid pitch changes over semitones (type 0 to disable)
triadic chords only

capital letters mean the tone is on the next octave.

the pitch numbers are relative to the lowest c. (they're averages of all the chords' frequencies, converted back to semitones. if the difference between two adjacent chords is too much, the progression sounds too prominent.)

it uses every tone, to reinforce the mode.

music time converter

bpm
note length
time signature
frames per second

one of those things i always think is a pain in the ass for some reason. useful for mickey mousing. you can type fractions for note lengths, but if it isn't a fraction it'll assume you mean 1/n. (ie "4" is read as a 1/4 note)