hi wriddler,
you're the saxplayer? cool. just been on the gofundme website. already 50$! i like also the science/music do-it-together idea. if the enthusiasm for (kit)building is big enough: etherwave parts. mostly all essential parts are there. the manuals on how to build and maintain that instrument can be found on TW. so you can choose how expensive your etherwave will get. i think, it's (still) the best theremin availlable for the price. but there are also different types of theremin and sure, you saw thomas grillo with brilliant reviews on them. a must see.
if you have arduino experiences or not: open.theremin. a cheap, simple to handle shield, not the fastest, sounds quite good, yes a bit " homogenised", but specially for the: wow it all happens in space,,moment for many different people, it's handy. one button for tuning both antenna makes it somewhat idiot-proof. (works for me<:-) ....no stranger fumbels on my volume knob, friendo....
so call back when it comes to the last few dollari ;-) sadly my currency is not supported.
hey i still wonder how a thereminist in a marching band get's good ground.? beside the accus and the amp.. poor thereminist :-(
bound to ground