MMDers,  I have just finished Xylomidi, a MIDI-controlled pneumatic
xylophone.  Look at  http://www.victorseraphine.com/xylomidi 

It is in French...  Sorry!

Best regards,
Patrice Rabby from Normandy, France

 [ At http://www.victorseraphine.com/xylomidi (translated):
 [
 [ "I decided to build a mechanical, or rather pneumatic, xylophone
 [ after having constructed a small organ of 32 flutes, commanded
 [ not by perforated cardboard or paper roll but by a MIDI interface.
 [ The purists are going to tell me that this is not the tradition...
 [ I would respond to them that if Dom Bedos de Celles was one of our
 [ contemporaries he would undoubtedly use electricity and electronics
 [ (in my opinion)!"
 [
 [ Some short videos are at http://www.dailymotion.com/Xylomidi 
 [ -- Robbie