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

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  • 1
    Munt
    A multi-platform software synthesiser emulating (somewhat inaccurately) pre-GM MIDI devices such as the Roland MT-32, CM-32L, CM-64 and LAPC-I. In no way endorsed by or affiliated with Roland Corp. Source hosted at: http://www.github.com/munt/
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    Downloads: 161 This Week
    Last Update:
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  • 2
    FluidSynth

    FluidSynth

    A real-time SoundFont software synthesizer

    A real-time software synthesizer based on the SoundFont 2 specifications. It can be used for live audio synthesis of MIDI events or for rendering MIDI files to disk, using SoundFont instruments. It can also be embedded in other applications. This is not a application with a graphical user interface, however there are several GUI applications which utilize FluidSynth.
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    Downloads: 108 This Week
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  • 3
    SoundHelix

    SoundHelix

    Versatile algorithmic random music generation software written in Java

    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.
    Downloads: 22 This Week
    Last Update:
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  • 4
    Arduino MIDI Library
    This library allows you to easily send and receive MIDI messages on the Arduino serial port. The purpose of this library is not to make a big MIDI controller or synth out of an Arduino board, but to help you do it, the application remains yours. /!\ PLEASE NOTE /!\ Project is hosted on GitHub: https://github.com/FortySevenEffects/arduino_midi_library This SourceForge project is deprecated. Please download source/releases and post bug reports on GitHub. Documentation: http://arduinomidilib.fortyseveneffects.com
    Downloads: 3 This Week
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  • 5
    libTiMidity is a MIDI to WAVE converter library that uses Gravis Ultrasound-compatible patch files to generate digital audio data from General MIDI files. This library based on the TiMidity decoder from SDL_sound library.
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    Downloads: 14 This Week
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  • 6
    Drumstick Libraries

    Drumstick Libraries

    MIDI libraries for Qt/C++

    Drumstick is a tool to play music. This is a set of C++ MIDI libraries using Qt5 objects, idioms and style. It contains a C++ wrapper around the ALSA library sequencer interface; ALSA sequencer provides software support for MIDI technology on Linux. A complementary library provides classes for SMF (Standard MIDI files: .MID/.KAR), and Cakewalk (.WRK) file formats processing. A multiplatform realtime MIDI I/O library is also provided.
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    Downloads: 13 This Week
    Last Update:
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  • 7
    This is a game engine that helps game developer to produce game easier.It is writen in C++ and all of the functions are fixed into classes as the engine is designed in the method of Object-Oriented.
    Downloads: 1 This Week
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  • 8
    Doors is groupware for electronic musicians. It aims to be an extensible, multi-user, musical performance framework which unifies heterogeneous, distributed multimedia hardware. The framework is based on CORBA, XML, NTP and URL technologies.
    Downloads: 0 This Week
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  • 9
    FrAid(FRactal AID) is an interface to Java, allowing it to proc. math. data(functions/equations). A compl. standalone system utilizing the FrAid prog. lang. is available(no need to be Java programmer to use it!). Use instead of Matlab. High res. graphics
    Downloads: 0 This Week
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  • 10
    musicomp is a program which most important element is an evolutionary algorithm which uses data mining methods as a fitness function to generate monophone melodies.
    Downloads: 0 This Week
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  • 11
    Octopus Music API

    Octopus Music API

    Java API for Musical Softwre

    The Octopus Music Library is a Java API designed to help developers and composers to deal with musical performance elements in a high level programming environment.
    Downloads: 0 This Week
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  • 12
    A modular audio programming language, designed to write applications quickly. Its main goal is real time audio processing, but it should be used for any kind of development.
    Downloads: 0 This Week
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  • 13
    RtMidiRouter is a small but powerful command line tool which allows you to route, manipulate and create MIDI messages. For reliable realtime performance RtMidiRouter is based on RtMidi. It is controllable via command line and network (OSC).
    Downloads: 0 This Week
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  • 14

    Speedy Composer

    Speedy Composer – Artificial Neural Network Melody Composer.

    Thank you for your interest in Speedy Composer. Speedy Composer is an automated application for composing melodies for Speedy Net members. We recently made changes to the source code of Speedy Net, and converted it into the Python language and Django framework. Since Speedy Composer was originally written in PHP, it is not adapted to work with Speedy Net in its current form. So unfortunately we were forced to temporarily close the app Speedy Composer. But don't worry, we kept backups of all the tunes composed by Speedy Composer, and when the website is reopened we will upload them to the new site. Speedy Composer and Speedy Net are open source applications, free software. We are currently looking for volunteers to help us convert Speedy Composer to Python. If you are interested in volunteering, please contact me by email. Thank you and good luck, Uri Rodberg Founder and Director of Speedy Net and Speedy Composer, Speedy Paz Technologies Ltd. uri@speedy.net
    Downloads: 0 This Week
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  • 15
    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.
    Downloads: 0 This Week
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  • 16
    libmidifile

    libmidifile

    A library for reading and writing standard MIDI files

    This library provides functions for reading and writing standard MIDI files. It was originally written by Tim Thompson <tjt@nosuch.com>. It has been modified and corrected by Piet van Oostrum <piet@cs.uu.nl>. I have made some minor changes to it in order to work properly with GCC.
    Downloads: 0 This Week
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