Stretto is Ruby's implementation of JFugue, an open source library originally written in Java by David Koelle for programming MIDI.


JFugue's syntax is great for producing both a human readable and parseable implementation of the MIDI specification. By detaching it from the Java sound engine, it can become an specification and be implemented in several languages/platforms. This implementation aims to be compatible with JFugue as well as serve as the basis for the format specification.