When you start, you'll be prompted with an input. The first two characters represent how many hundredths of a second are spent in-between each change to the currently playing note. Every pair of characters afterwords represent a change to whatever note is playing. The latter type of characters can be these special pairs: st (Stops any currently playing notes.) pa (Pauses for a cycle without any change to the note.) lo (Loops the song back to the beginning.) Share songs by commenting the data you input!