Initial upload and prototype.  Features include

• Midi over USB out (note on and note off)
• 3 octave keyboard. up to 5 selective octave ranges

Audio Synthesis features

• Multiple wave forms, including
  • Sine
  • Sawtooth
  • Reverse Sawtooth
  • Pulse
  • Square
• Frequency range of to 81.8 to 12543.85 hz
• polyphonic up to 4 notes.  Additional notes cause earliest note to drop out
• analog joystick.  One axis is overall volume the other is pitch bend.
• Pitch bend can be switched between the entire interface or just the last note played
• Pitch bend moves 1/2 step either direction

still to do:

• add the audio shield for better sound quality
• add more interesting sounds with different sorts of sound synthesis (looking at FM modulation)