Open Source Music Composition Software

SoundHelix is a free versatile Java framework for algorithmic random music composition. SoundHelix can generate random songs, play them (for example, on any number of MIDI devices or MIDI-capable software synthesizers) and is highly customizable using XML configuration. SoundHelix also allows writing the generated music as MIDI files. SoundHelix produces music that is actually enjoyable to listen to.

Mutabor is a Program that allows performing and composing microtonal music using a normal MIDI keybord. But it's powerful description language is intended to allow permanent retunings and tuning logics in to describ, what's actually goes on.

Strasheela is a constraint-based music composition system. The user defines music theories by sets of compositional rules and the system creates music which complies with these theories. User-interface is the programming language Oz.

A Collection of Useful C++ Classes for Digital Signal Processing This project has been moved to here: http://code.google.com/p/dspfilterscpp/

A teachable/trainable artificially intelligent music bot fundamentally inspired by how the new wave band Duran Duran composes music. This program utilizes many algorithmic/AI techniques/processes, including machine learning; which allow you to teach/train it to compose music which you prefer... and the technique which is the foundation of the design of DuranDuranbot, which was directly inspired by how Duran Duran writes music........ Called, "bit by bit circular composition"....... and it's explanation can be found here - https://scsynth.org/t/bit-by-bit-circular-composition/1107 This program is written in the SuperCollider programming language - https://en.wikipedia.org/wiki/SuperCollider Contact - ken_brant@ymail.com

LilyPondBeans is a GUI front-end for the LilyPond (www.lilypond.org) music notation software.

The project is composed of two layers. The first layer is an artificial intelligence engine, partwriter, that writes music based on some heuristic. The second layer is the layer that defines the heuristic. The definition of this heuristic defines the type of music that partwriter will create. Currently (December 2012), the deepest layer is more or less complete. The author is now writing second layers of interest, namely species counterpoint heuristics according to Fux's Gradus Ad Parnassum.

Fractal/Scripting VSTi synthesizer, written on Java with jVSTwrapper

This android app is producing music and partition sheets in real time. Furthermore, the AI module can be activated and be trained to learn you prefered style and play it. You can also team play your music with the interconnect mode. Finally, move your phone like a 'chef d'orchestre' and see how it changes the music...

TagTools for Linux is a set of scripts which can be used to manipulate audio tags of various audio formats (MP3, OGG, FLAC etc). In fact, it is an implementation of the Audio::TagLib library (http://search.cpan.org/dist/Audio-TagLib/lib/Audio/TagLib.pm), and provides it with a command-line and dialog-based interface. TagTools should also work correctly with tags written in different codepages (utf8, cp1251 etc). The following scripts are included: tag2fname - this is a command-line tool to rename a number of files using the information extracted from audio tags in a specified format. tag2fname.dialog - a dialog-based interface for tag2fname. fname2tag - another command-line tool to convert file names into audiotags using a specified format. batchtag.dialog - a dialog-based tool for batch tag editing. tagedit.dialog - dialog-based tool for editing individual audio file tags.

It allows you to use JFugue-2.1 API to program music on MIDP 2.0, CLDC 1.1 compatible mobile devices. It's easy to use, like this code to play C-major scale: Player player = new Player(); player.play("C D E F G A B"); It's all based on JFugue-2.1 sources, so go to http://www.jfugue.org for more information.