ToneMatrix v0.5

ToneMatrix is a 16-step drum machine. The Y (vertical) axis
represents eight different sounds, and more than one can be
played at a time. The X (horizontal) axis represents one
measure in sixteenth-notes.

Select a node on the grid with the D-pad and the X button,
and that sound will be played in time. Press O to stop/
resume playing, and use /\ (triangle) to clear the grid.

Press START to use the menu, and use the D-pad to select a
menu item or change a value (like the tempo), and X (cross)
to confirm your choice. Press SELECT for help.

Signed and unsigned versions are included, as well as the source code. Written and released by Babkock.