Open Source Mac Music Composition Software

Impro-Visor® is a music notation tool for producing monophonic lead sheets, specifically intended to help the improviser. Chord symbols are used to generate backing tracks automatically. Improvisation advice exists in the form of note coloration, database of licks, and automatic lick generation from grammars. Grammars can be learned automatically from transcriptions. Styles can be edited and created by the user. Other features include generation of roadmaps for understanding keys and idiomatic chord progressions, chord voicing keyboard, MIDI and MusicXML export. See http://www.cs.hmc.edu/~keller/jazz/improvisor for general information, including tutorials. Support and additional resources are through the user group https://groups.yahoo.com/neo/groups/impro-visor/info. The most recent source code, since summer of 2015, is housed here: https://github.com/Impro-Visor/Impro-Visor This started when SourceForge was down for over one week during an active development period.

MuseScore is the leading free & open source music notation software for Windows, Mac and Linux. It is easy to use and makes beautiful sheet music. MuseScore is often praised as a cost effective alternative for Sibelius and Finale. Support MuseScore at http://musescore.org/en/donate Like MuseScore on Facebook: http://facebook.com/musescore

ScoreDate is your date with the music ! It is an open source software written in Java that helps musicians to learn music reading. It also helps you with ear training. It is suitable for any skill, from beginners to professional users. From slow training to first sight reading.

An opensource typesetting environment for editing and publishing Carnatic music books in Indian languages. Supports Phonetic Translation of notation & lyrics and uses CFugue Runtime to automatically generate MIDI song files from the music notation.

A music notation program to aid musicians in composing and understanding solos. Enable musicians to improve their understanding of chord changes and solos.

Explore music theory by composing songs based on chords, modes, scales, etc.

NotesTyper system converts text typing into music. You will need computer keyboard, microphone (notebook mic is ok) and Chrome or Firefox browser. NotesTyper has multiple operating modes and settings, which allow to produce different music from same text. Computer keyboards do no allow to input keypress velocity, but NotesTyper overcomes this restriction by processing microphone input level when you type. When generating music all nuances of your typing are taken into account: what keys were pressed, exact timings of all key presses and key releases, velocity (loudness) of typing. Who can be interested: Researchers: experiment with converting text to music and explore fundamental relationships. Musicians: virtual keyboard with touch sensitivity. Music composers: compose new music with algorithmic and improvisation approach. Text authors: listen and share to how your text can sound.

Ouroborus is an artificial life framework for mobile agents on a background of cellular automata. It can be used to teach and research topics such as population genetics, ecology and evolution. The demo includes a curses view and live Csound audio.

Strum aims to improve your musical skills on stringed instruments; learning scales, chord construction, and how to find them on various instruments with many tunings.

foo is a sound synthesis framework which provides high-level abstracted ways of creating and manipulating sounds via a scheme language interface. foo is designed for highest audio quality rather than highest performance.