Browse free open source Music Composition software and projects below. Use the toggles on the left to filter open source Music Composition software by OS, license, language, programming language, and project status.

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  • 1
    Rakarrack Guitar Effects
    Rakarrack is a stereo digital effects processor for Linux with jack support. Standard line-up of nearly 40 effects modules include Equalizers, Reverbs, Echo, Flange, Chorus, Distortions, WahWah, Vocoder, and other filters and processing modules.
    Downloads: 12 This Week
    Last Update:
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  • 2
    Aural Probe

    Aural Probe

    An automatic sample librarian tool for musicians

    Aural Probe is a sample librarian tool for computer musicians/audio engineers. Automatically and non-destructively index your disorganised sample collection from a list of folders into categories (kick, snare, hihats etc.) based on folder/filename wildcard matches. Easily audition samples, load/save favourites, and drag-and-drop straight into your sequencer.
    Downloads: 2 This Week
    Last Update:
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  • 3
    Rubato Composer
    Rubato Composer is a music software based on the concepts and models of mathematical music theory and equally suited for music composition, analysis, performance, and logical or geometric operations.
    Downloads: 3 This Week
    Last Update:
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  • 4

    Chord Reporter

    Linux program displays the names of musical chords as you play them.

    Chord Reporter (hereafter abbreviated to CR) is a software program that displays the names of chords, as you play them (upon some MIDI controller or from a MIDI sequencer track). CR comes in two versions. There is an LV2 plugin that will run on any Linux program that loads such plugins. In that way, you can anaylze the chord progressions in your DAW's MIDI tracks. The second version is a Linux executable that runs on its own. You can directly attach your MIDI controller to this version to review the chords you're playing (as you play them). A suitable MIDI controller would be either a MIDI keyboard, a guitar equipped with a MIDI pickup such as the Fishman triple play, or even an electric guitar pickup plugged into a computer audio interface running pitch-to-MIDI software.
    Downloads: 1 This Week
    Last Update:
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  • 5
    This is a tool for collective electroacoustic improvisation. Up to 20 users can particpate using their smartphone and their voices to mould sounds/images recorded live.
    Downloads: 0 This Week
    Last Update:
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  • 6
    A C++ library and Python module for audio synthesis featuring dynamic digital filters. Nsound lets you easily shape waveforms and write to disk or plot them. Nsound aims to be as powerful as Csound but easy to use.
    Downloads: 0 This Week
    Last Update:
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  • 7
    This is a program to store data calculated from the tempo of a song into different degrees of seconds for use with "programming synths". Written in C++ with Visual C++ Express. Java version coming soon.
    Downloads: 0 This Week
    Last Update:
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  • 8

    lmatsound

    Generate audio data from scratch

    This C# project is composed of a set of objects that either generate or filter sounds. The project is useful for experimenting with sounds: e.g. experimenting with harmonic composition of sounds, alternate tuning systems, effects processing, and other sound synthesis techniques. It has been replaced by a version in C++ at https://sourceforge.net/projects/laudio/ .
    Downloads: 0 This Week
    Last Update:
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  • 9

    moshcow

    signal synthesis and modification

    C++ classes and function for signal synthesis and modification.
    Downloads: 0 This Week
    Last Update:
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  • 10
    Application to transcribe music. This means recording songs/open audio files and pick out the notes.
    Downloads: 0 This Week
    Last Update:
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