Check this out! Kevin Schlei has programmed a couple multitouch systhesis instruments. ‘MstretchSynth’ and ‘MdrumSynth’. The future is now!

MStretchSynth Demo - Kevin Schlei (2010) from Kevin Schlei on Vimeo.

'MStretchSynth' uses multi-point (multi-touch) data streams to create a synthesis instrument driven by the relationships between points. Instead of mapping touch positions (X and Y coordinates) directly to synthesis parameters, relationships such as angle, distance, and velocity compared to other points are used.

'MStretchSynth' uses angle, distance and total velocity between points to map to synthesis parameters pitch, amplitude and delay depth.

MDrumSynth Demo - Kevin Schlei (2010) from Kevin Schlei on Vimeo.

'MDrumSynth' uses multi-point (multi-touch) data streams to create a synthesis instrument driven by the relationships between points. Instead of mapping touch positions (X and Y coordinates) directly to synthesis parameters, relationships such as angle, distance, and velocity compared to other points are used.

'MDrumSynth' pulls a variety of data from the multi-point interactions. Mapped parameters include: number of active points, points created per second, points held per second, points' distance and angle to previous, and average X and Y position of all points. This creates a very expressive percussion instrument - even without pressure sensitivity.