pysmf is a Python extension module for reading and writing Standard MIDI files, based on libsmf.

Quod Libet provides several ways to browse and view your local music library, along with flexible search capabilities. It includes a tag editor, which can also be invoked as a standalone program, and further supports streaming audio and feeds (such as podcasts).

New Session Manager (NSM) is a tool to assist music production by grouping standalone programs into sessions. It can be used create a session, or project, and add programs to it and then use commands to save, start/stop, hide/show all programs at once, or individually. The session can be interrupted and easily resumed at a later time.

libdiscid is a C library for creating MusicBrainz and freedb disc IDs from audio CDs. It reads a CD's table of contents (TOC) and generates an identifier which can be used to lookup the CD at MusicBrainz. Additionally, it provides a submission URL for adding the disc ID to the database and gathers ISRCs and the MCN (=UPC/EAN) from disc.

Sfizz provides an SFZ parser and synth C++ library. It includes LV2 plugins and a JACK standalone client.

This project is a real time General MIDI synthesizer based on the Sonivox EAS Synthesizer by Google. It does not need external soundfonts, using embedded samples instead.

This package provides a tool to control any MIDI-enabled hardware such as synthesizers, drum machines, samplers, or effects. It lets you create custom user interfaces for your MIDI hardware.

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.

This package provides LV2 audio utility plugins, such as filters, crossovers, simple gain plugins without zipper noise, switch box plugins, a switch trigger, a toggle switch, and a peakmeter.

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.

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.

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

This package provides the LV2 plugin "GxVBassPreAmp", a pre-amplifier simulation modelled after the 1984 Vox Venue Bass 100 Pre Amp Section.

Synthesis ToolKit in C++ (STK) is a set of audio signal processing and algorithmic synthesis classes written in C++.

This package also provides its demo project, examples, ElectricGuitar, RagaMatic and Effects.

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.

Clyrics is an extensible command-line tool to fetch the lyrics of songs. It can be used in daemon mode along with the Music-on-Console (MOC) and cmus console music players.

Stargate is a digital audio workstation with built-in instrument and effect plugins and wave editor, providing innovative features, especially for EDM production.

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.

Geonkick is a synthesizer that can synthesize elements of percussion such as kicks, snares, hit-hats, shakers, claps and sticks. It can also play and mix samples.

Aria Maestosa is a MIDI sequencer and editor. It lets you compose, edit and play MIDI files with a few clicks in a user-friendly interface offering score, keyboard, guitar, drum and controller views.

Ninjas 2 is a rewrite of the Ninjas sample slicer audio plugin. Its goal is to be an easy to use sample slicer with quick slicing of samples and auto-mapping slices to MIDI note numbers.

The MusicBrainz::DiscID module is a Perl interface to the MusicBrainz libdiscid library, allowing you to manipulate digital audio compact disc (CDDA) identifiers.

MusE is a MIDI/Audio sequencer with recording and editing capabilities. Its audio sequencer supports the LADSPA, DSSI, and LV2 audio plugin formats; the MIDI sequencer provides a piano roll, a drum editor, a list view, and a score editor. MusE aims to be a complete multitrack virtual studio.

MilkyTracker is a music application for creating .MOD and .XM module files. It attempts to recreate the module replay and user experience of the popular DOS program Fasttracker II, with special playback modes available for improved Amiga ProTracker 2/3 compatibility.