DESCRIPTION:
HoustonTracker 2 is a music editor/sequencer for Texas Instruments graphing calculators. It outputs 1-bit sound through the calculator link port. HT2 features 4 voice polyphony, tons of effects, and a simple, tracker-style interface.

Downloads, documentation, and more at http://irrlichtproject.de/houston
source code at https://github.com/utz82/HoustonTracker2