klick is an advanced command-line based metronome for JACK. It allows you to define complex tempo maps for entire songs or performances.

TAP (Tom's Audio Processing) plugins is a collection of audio effect plugins originally released as LADSPA plugins. This package offers an LV2 version ported by moddevices.

This package provides the LV2 plugin "GxPushPull", a simulation of a push pull transistor fuzz effect with added high octave.

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.

Libpd provides Pure Data as an embeddable audio synthesis library. Its main purpose is to liberate raw audio rendering from audio and MIDI drivers.

GNU LilyPond is a music typesetter, which produces high-quality sheet music. Music is input in a text file containing control sequences which are interpreted by LilyPond to produce the final document. It is extendable with Guile.

This package provides the LV2 plugin "GxHyperion", a simulation of the Hyperion Fuzz pedal.

opustags is an Ogg Opus tag editor. It reads and edits the comment header of an Ogg Opus audio file, offering both read-only and editing modes. Tags can be edited interactively with an editor of your choice.

Zam plugins is a collection of audio processing plugins in the LADSPA, LV2 and VST2 formats, as well as standalone JACK versions. The collection includes ZaMaximX2, ZamAutoSat, ZamComp, ZamCompX2, ZamEQ2, ZamGEQ31, ZamHeadX2, ZamPhono, ZamGate, ZamGateX2, ZamTube, ZamDelay, ZamDynamicEQ, ZaMultiComp, ZaMultiCompX2 and ZamSynth.

Petri-Foo is a fork of the Specimen sampler project intended to run under a JACK session.

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.

PatchMatrix is a patch bay for the JACK audio connection kit. It provides a patch bay in flow matrix style for audio, MIDI, CV, and OSC connections.

A Python interface to Last.fm and other API-compatible websites such as Libre.fm.

Abjad helps composers build up complex pieces of music notation in iterative and incremental ways. Use Abjad to create a symbolic representation of all the notes, rests, chords, tuplets, beams and slurs in any score. Because Abjad extends the Python programming language, you can use Abjad to make systematic changes to music as you work. Because Abjad wraps the LilyPond music notation package, you can use Abjad to control the typographic detail of symbols on the page.

Virtual MIDI Piano Keyboard is a MIDI events generator and receiver. It doesn't produce any sound by itself, but can be used to drive a MIDI synthesizer (either hardware or software, internal or external). You can use the computer's keyboard to play MIDI notes, and also the mouse. You can use the Virtual MIDI Piano Keyboard to display the played MIDI notes from another instrument or MIDI file player.

Glyr comes both in a command-line interface tool (glyrc) and as a C library (libglyr).

The sort of metadata glyr is searching (and downloading) is usually the data you see in your musicplayer. And indeed, originally it was written to serve as internally library for a musicplayer, but has been extended to work as a standalone program which is able to download cover art, lyrics, photos, biographies, reviews and more.

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.

pianobar is a console-based music player for the personalized online radio pandora.com. It has configurable keys for playing and managing stations, can be controlled remotely via fifo, and can run event-based scripts for scrobbling, notifications, etc.

This is the continuation of the official Discogs API client for Python. It enables you to query the Discogs database for information on artists, releases, labels, users, Marketplace listings,and more. It also supports OAuth 1.0a authorization, which allows you to change user data such as profile information, collections and wantlists,inventory, and orders.

The VL1-Emulator is an emulator of Casio VL-Tone VL1, based on source code by PolyValens, offered as an LV2 plugin and a standalone JACK application.

The main goal of liquidsfz is to provide an SFZ sampler implementation library that is easy to integrate into other projects. A standalone JACK client and an LV2 plugin is also available.

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

Seq24 is a real-time MIDI sequencer. It was created to provide a very simple interface for editing and playing MIDI loops.

This application displays an icon in the system tray (also known as notification area) of your desktop, which shows the status of the JACK audio server and when you click on it, a menu pops up, which lets you quickly select from the JACK configuration presets you created with QjackCtl. When you select a preset, its JACK engine and driver configuration settings are loaded via DBus into JACK and then the server is restarted. This allows you to switch between different audio setups with just two mouse clicks.