slat (nee "theremin") makes theremin-like sounds.
It's only been a few days, but slat now has a better name, and much
better sound. It also does tremolo and vibrato. See the commandline
options for adjusting it.
Info and download:
http://dis-dot-dat.net/index.cgi?item=/code/slat/
Sample of the new sound:
http://dis-dot-dat.net/content/code/slat/newsamp.ogg
Have fun.
James
--
"I'd crawl over an acre of 'Visual This++' and 'Integrated
Development
That' to get to gcc, Emacs, and gdb. Thank you."
(By Vance Petree, Virginia Power)