a2jmidid is a daemon that implements automatic bridging of ALSA midi devices to JACK midi devices.

Audacious is an audio player descended from XMMS. Drag and drop folders and individual song files, search for artists and albums in your entire music library, or create and edit your own custom playlists. Listen to CD’s or stream music from the Internet. Tweak the sound with the graphical equalizer or experiment with LADSPA effects. Enjoy the modern GTK-themed interface or change things up with Winamp Classic skins. Use the plugins included with Audacious to fetch lyrics for your music, to set an alarm in the morning, and more.

QMidiArp is an advanced MIDI arpeggiator, programmable step sequencer and LFO. It can hold any number of arpeggiator, sequencer, or LFO modules running in parallel.

LibSMF is a C library for handling SMF ("*.mid") files. It transparently handles conversions between time and pulses, tempo map handling and more. Full API documentation and examples are included.

This is the C implementation of the ORCΛ language and terminal livecoding environment. It's designed to be power efficient. It can handle large files, even if your terminal is small.

Orca is not a synthesizer, but a flexible livecoding environment capable of sending MIDI, OSC, and UDP to your audio/visual interfaces like Ableton, Renoise, VCV Rack, or SuperCollider.

PaulXStretch is an application/plugin is based on the PaulStretch algorithm (Paul’s Extreme Time Stretch, originally developed by Nasca Octavian Paul), and specifically the PaulXStretch version from Xenakios.

The purpose of beets is to get your music collection right once and for all. It catalogs your collection, automatically improving its metadata as it goes using the MusicBrainz database. Then it provides a variety of tools for manipulating and accessing your music.

Fabla is an LV2 drum sampler plugin instrument. It is ideal for loading up your favorite sampled sounds and bashing away on a MIDI controller.

InstantMusic downloads a song from YouTube in MP3 format. Songs can be searched by artist, name or even by a part of the song text.

Mixxx is a DJ software. It integrates the tools DJs need to perform creative live mixes with digital music files.

The MusicBrainz Client Library (libmusicbrainz), also known as mb_client, is a development library geared towards developers who wish to add MusicBrainz lookup capabilities to their applications.

Drumstick is a set of MIDI libraries using C++/Qt5 idioms and style. It includes a C++ wrapper around the ALSA library sequencer interface. A complementary library provides classes for processing SMF (Standard MIDI files: .MID/.KAR), Cakewalk (.WRK), and Overture (.OVE) file formats. A multiplatform realtime MIDI I/O library is also provided with various output backends, including ALSA, OSS, Network and FluidSynth.

This package contains data files for use with Le Biniou.

This package contains LV2 ports of the following audio plugins:

• Dexed,

• dRowAudio plugins (Distortion, Distortion Shaper, Flanger, Reverb, Tremolo),

• DrumSynth,

• EasySSP,

• EQinox,

• HiReSam,

• JuceOPL,

• KlangFalter,

• LUFS Meter,

• Luftikus,

• Obxd,

• PitchedDelay,

• ReFine,

• StereoSourceSeperation,

• Swanky Amp,

• TAL plugins (Dub-3, Filter, Filter-2, Noize Mak3r, Reverb, Reverb-II, Reverb-III, Vocoder-II),

• Temper,

• Vex,

• Vitalium, and

• Wolpertinger.

setBfree is a MIDI-controlled, software synthesizer designed to imitate the sound and properties of the electromechanical organs and sound modification devices that brought world-wide fame to the names and products of Laurens Hammond and Don Leslie.

The Sherlock plugin bundle contains LV2 plugins for visualizing LV2 atom, MIDI and OSC events. They can be used for monitoring and debugging of event signal flows inside plugin graphs.

Synthv1 is an old-school subtractive polyphonic synthesizer with four oscillators and stereo effects.

abjad-ext-nauert provides classes for dealing with composer and music theorist Paul Nauert's quantization grids or Q-Grids, for short.

Music player with support for most common audio formats, and plugins for various additional features such as visualization, effects and online service integration. In addition to a Qt-based interface it supports Winamp/XMMS skins.

Mamba is a virtual MIDI keyboard and MIDI file player/recorder for the JACK Audio Connection Kit. It comes with predefined keymaps for QWERTZ, QWERTY and AZERTY keyboards and also allows custom ones.

The 6581 SID chip is the sound chip used in the Commodore 64 computer. reMID is a MIDI implementation of the 6581 SID chip using the reSID library to provide a virtual SID-based synthesizer, controllable in real-time via MIDI. It includes support for scripted instruments that allow complex sonic control of the chip.

Libgig is a C++ library for loading, modifying existing and creating new Gigasampler (.gig) files and DLS (Downloadable Sounds) Level 1/2 files, KORG sample based instruments (.KSF and .KMP files), SoundFont v2 (.sf2) files and AKAI sampler data. The package includes a couple of command line tools based on the library.

Le Biniou is a music visualization & VJing tool. It creates live visuals based on audio performances or existing tracks.

abjad-ext-rmakers includes a collection of classes for creating and and manipulating rhythms such as accelerandi, taleas, and more.