Sonic Pi - Sonic Pi is a new kind of instrument for a new generation of musicians. It is simple to learn, powerful enough for live performances and free to download.

FamiStudio - FamiStudio is very simple music editor for the Nintendo Entertainment System or Famicom. It is designed to be easier to use than FamiTracker, but its feature set is also much more limited.

SuperCollider - A real time audio synthesis engine, and an object-oriented programming language specialised for...

SunVox - SunVox is a small, fast and powerful modular synthesizer with pattern based sequencer (tracker).

ChucK - A strongly-timed music programming language

Cubasis - Cubasis is Steinberg’s streamlined, multitouch sequencer for the iPad.