John Bowen Synth Design

I have someincrediblethingto show you !
may be for the Solaris

http://www.eecs.qmul.ac.uk/~andrewm/touchkeys.html

http://fr.audiofanzine.com/controleur-m ... 23836.html

It certainly looks possible, more controllers is always welcome.
Just wondering if there's some custom retro fitting that needs to be done.