Computer Algebra System written in Common Lisp
Nyquist is a language for sound synthesis and music composition.
A Portable General-Purpose Computer Algebra System
Relational programmable database with GUI
Binary Modular DataFlow Machine (BMDFM)
Simple and complete bignum/rational C library with wrappers for C++
An algorithmic music composition system
Cross platform GUI for Maxima
Real-time audio synthesis engine and music programming language
Text scraping and data munging language.
A game developed by Reddit community
Lisp interpreter for the PSP + UNIX-clones.