Mixalot
Mixalot is a grab bag of systems related to audio in Common Lisp under an MIT-style license.

Currently it consists of a mixer component providing straightforward audio output on Linux (via ALSA) and other platforms (using libao), a CFFI binding to the libmpg123 library, and a helper component allowing playback of MP3 files through the mixer.

License: MIT

Homepage: http://github.com/ahefner/mixalot