Open Source Java MIDI Software for Windows

TuxGuitar is a multitrack guitar tablature editor and player written in Java-SWT, It can open GuitarPro, PowerTab and TablEdit files.

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.

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MidiQuickFix allows you to directly edit the events in a Midi file. It is intended to make it easy to find and fix problems, such as setting volume and pan values for a track, without the need for a complex Midi sequencing program.

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.

Frinika is a free, complete music workstation software for Linux, Windows, Mac OSX and other operating systems running Java. It features sequencer, soft-synths, realtime effects and audio recording.

Jalmus is a free, open source music education software helping the musicians, especially pianists, to improve their sight-reading. You can train to read music with both exercises on notes or rhythms.

JSynthLib is a universal MIDI synthesizer librarian / editor. The project aims to eventually support all existing synthesizers.

New control application for your great VOX Tonelab ST device. Planned is to be able to control all settings you can set on the device in realtime from your pc! Also channel switching. Platform independent java project.

DGuitar is a Guitar Pro (*.GP4,*.GP3,GTP) viewer and player that works under Linux, MacOs, Solaris, BSD, Windows, or any other operating system with Java Runtime 1.4.X. http://DGuitar.sourceforge.net If you are a JAVA developer visit this page https://bitbucket.org/mauriciograciag/dguitar/overview

Give the chord progression and a style and JChordBox generates a song. JChordBox is a library tool that can generate backing tracks from a chord progression and a music style. A music Style is describe using an XML and a MIDI file. You can generate an XML Style file from a MIDI file by adding markers to delimit grooves. An XML Song file describes a chord progression and sets the music style to use. JChordBox comes with several command line tools (GenerateSong, CreateStyleFromMidiFile, SongPlayer …). NEW:The application center is called SongPlayer and is a text based user interface that can play JChordBox song. SongPlayer is a MIDI Player that can loop a song, mute or soloing tracks and displays transport informations. SongPlayer is now the default jar application. NEW:Examples have been added to the distribution package.

As a library of classes for generating and manipulating music and sound, jMusic provides a solid framework for computer assisted composition in Java. jMusic has a music data structure based upon note/sound events and methods for modifying and structu

jVSTwRapper allows you to develop VST (2.4), Audio Unit (AU) and LADSPA compatible audio plugins and virtual instruments plus user interfaces (Swing) with the Java programming language on Windows, Linux and Mac OSX. 5 demo plugins (+src) are included.

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.

Plarpebu is a java karaoke player that runs on any architecture that can run java. It plays both midi (.mid and .kar) and mp3+cdg files. Check project web site at : http://miageprojet.unice.fr/twiki/bin/view/Fun/ScreenshotsPage for full info.

Open Musicwriter is a multi-platform open-source music score editor. It handles MIDI files and MusicXML files.

RasmusDSP is an embeddable Audio/MIDI processor. It contains various filters and generators (including SoundFont 2.0 compatible synthesizer). Has a script interpreter which is used to describe instruments, route Audio/MIDI signal between processor units.

The MidiRandomizer is a Java Swing application that generates MIDI files (SMF) according to a set of randomization parameters. This allows some measure of control over the random patterns produced.

Tritonus is an independent implementation of the Java Sound API (http://www.javasoft.com/products/java-media/sound/index.html).

EnzAnKara turns your Desktop/Notebook into a KaraOkey machine: you can play/edit your music lyrics/notes and sing along with a mic to your computer. Requires JDK 5.0 and a sound card. IMPORTANT: JRE can't play midi, use JDK! See http://karaok.sf.net/

Clips is a Java based music composing tool separating chords and rythms: Create a funky rythm and turn it into a song by varying the chords. Just for the hell of it, it is also specially designed to be portable to mobile platforms (e.g. Android).

Java based paino trainer. Creates random scores according to user preferences (scale, single/chords...) and waits for right MIDI in to erase right notes or complain about bad ones. Though the screenshots are in German it's i18n feature is just overwhelm

Extend your MIDI keyboard to teach you playing it. Different practive levels will be available to improve your play.

MIDIFile2Text is a conversion GUI and command-line utility to batch process MIDI files to a human text-readable event list.

A VST plugin that bridges VST data to the Open Sound Control networked domain. The plugin supports OSC scheduling and parameter control. The OscVstBridge can be used as a OSC to MIDI converter as well as a MIDI to OSC converter by using a VST host.