Here is a completly amazing control surface for your favorite sequencer or synthesizer : It's a machine capable of playing Notes, Control Change and Program Changes Photos are available at http://www.midibox.org/forum/index.php?topic=9655.0 Here is how it is made : The machine is composed by 3 things : 1 - A 64 buttons keyboard, design of TK with the scan matrix http://www.ucapps.de/mbhp/mbhp_scan_matrix1.pdf 2 - A control surface with 4 buttons, one jack for a footswitch and one clickable