To compose a music, click on a box to cycle through the beats.
Hold Ctrl (or Z) to cycle backward.
Hold Shift (or X) to delete a beat.
Hold Caps lock (or C) to listen to a beat.
Hold Space bar to play the music from that point.
HOW TO PLAY:
click on "Play Now" button to play, make sure your browser
allow popup. After you click "Play Now" there is a window popup,
have fun...
