english deutsch
Ecphonema
http://www.ugcs.caltech.edu/~ecphon/
All-male group with contemporary pop focus. Sound samples in .wav format.
Out Of Context
http://www.ugcs.caltech.edu/~ooc/
Mixed group with a pop repertoire. No sound clips.
Treble Makers
http://www.its.caltech.edu/~treble/
All-female group with "pop, jazz, and classical" repertoire. No audio.