This link popped up on the PreSonus Facebook page. It is a pretty handy chart of the frequency ranges of certain instruments and their overtones.
This is my performance with IMP from my PhD lecture recital at LSU on March 13, 2013. The Interactive Musical Partner (IMP) is a piece of software that will play free improv duos with a human improviser. More info at: http://research.jeffalbert.com/imp/