GGB is the algorithmic music generator which is the direct successor to GGA (a sampler).
Enjoy some obnoxious MP3s:
demo2 wow a xylophonish sound
demo4 all 21 verses of there's a hole in the bucket, with greg singing
happy1 a happy song
happy2 the extended remix
happy4 the super-extended remix
Download ggb! (2008/01/09 CVS snapshot)
Download ggb! (2005/07/26 release)
Download gga! (2005/01/16 release -- offered unto the world in shame)