Elhardt, David Tudor's "Rainforest" might have some ideas you could use. This piece was created by attaching transducers to various resonant objects and playing electronic tones through them. Here's a (not very detailed) description: http://www.emf.org/tudor/Works/rainforest.html
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Re: [motm] transducers, input or output?
2002-11-04 by Tim Walters