Video demo of PipeKeysC at:
http://drop.io/PipeKeysC/asset/pipekeyscdemo-mpg
(slight audio distortion due to hosting service re-compression)
Higher quality audio-only version available at:
http://drop.io/PipeKeysC/asset/pipekeysc-mp3
Click on the "Download" button to get the original .mp3 audio file. Don't play the online version, it has also been poorly re-compressed.
Screen capture:
Pitch bending and finger vibrato is done by sliding the finger along the length of the key.
Regulators may be played either in the two dedicated touch zones at the upper left of the screen or the top and bottom halves of the lowest C and C# keys.