Seaboard: https://www.roli.com/seaboard/
EMR pickup: http://zvukolom.org/instruments/elektrosluch/
and from Stanford a Flowbee: https://www.yahoo.com/tech/ge-wang-who-has-the-most-high-lev...
https://ccrma.stanford.edu/groups
____________
(these are all interesting, but I'm going to stick to piano, clarinet, mandolin and cello, i think)
http://www.eigenlabs.com/
http://www.eigenlabs.com/