CLISP is a portable ANSI Common Lisp implementation and development environment by Bruno Haible. Interpreter, compiler, debugger, CLOS, MOP, FFI, Unicode, sockets, CLX. UI in English, German, French, Spanish, Dutch, Russian, and Danish.
Real-time audio synthesis engine and music programming language
N.B. SuperCollider is now hosted at GitHub, and the most recent versions can be downloaded from there. http://supercollider.github.io A real time audio synthesis engine, and an object-oriented programming language specialised for music. SuperCollider was created in 1996 by James McCartney, now (since version 3) released as free software.
Emacspeak turns Emacs into a complete audio desktop to provide a pleasurable eyes-free computing experience.
PLOB! (Persistent Lisp OBjects!) implements orthogonal persistency for LISP and CLOS objects.
Address List program for tracking personal info in a plain text file
Yellowcard is an address list maintenance program for keeping personal information in a plain text file.