YouTube Uploaded by robotmakers on Mar 29, 2011
"Demonstration of the pellegrini space-time keyboard. A free open source iPad app based on the Control system, it allows wireless MIDI control of synths. The synths used in this demo include modular Moog."
Update: some additional info from robotmakers via Muffs:
"Inspired by the Haken Continuum, but in simplified two octave form, the pellegrini space-time keyboard is an open-source program that runs within the Control environment available free in the iTunes app store.
[http://charlie-roberts.com/Control/
Control (OSC + MIDI) - One More Muse - iTunes]
The whole thing relies on your having a WiFi network and a computer with a MIDI interface. Setup is truly painless. Download the Control app to your iPad. If you have a Mac, you don't need any other software. For PC's you just have to install the free rtpMIDI driver which is very straightforward. Instructions are on the excellent Control website. Requires minimal computer skills. Really.
http://charlie-roberts.com/Control/?page_id=51
The way the keyboard works is through a combination of MIDI note and pitchbend messages. Upon initial touch, a MIDI "note on" message for the center key (from C0 to C7 depending on the octave setting) is sent, along with pitchbend info tuned to the particular key selected. Note that proper functioning relies on the receiving MIDI device (like your MIDI to CV converter) being calibrated to a pitchbend range of +/- 1 octave. When you move your finger without lifting, pitchbend information pertaining to the note "slide" is sent, along with programmable continuous controller messages proportional to the "y-axis" movement. Note that pitch information is precisely "auto-tuned" to the note in the scale being played when the user's touch moves vertically along a single key. Pitch information is also precisely "tuned" on first touch of a key. Otherwise, the player's touch freely selects continuous pitches within the two octave range. The touch end event sends a note off command. Octave up/down switches extend the playable range.
Use this link from within "Control" on your iPad to load the interface:
http://pellegriniusa.com/js/xykd.js
Eye candy of the synths used to make the video"
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