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.

TuxGuitar is a guitar tablature editor with player support through midi. It can display scores and multitrack tabs. TuxGuitar provides various additional features, including autoscrolling while playing, note duration management, bend/slide/vibrato/hammer-on/pull-off effects, support for tuplets, time signature management, tempo management, gp3/gp4/gp5 import and export.

Midicsv reads a standard MIDI file and decodes it into a comma-separated value file (CSV), which preserves all the information in the MIDI file. The ASCII CSV file may be loaded into a spreadsheet or database application, or processed by a program to transform the MIDI data (for example, to key transpose a composition or extract a track from a multi-track sequence). A CSV file in the format created by midicsv may be converted back into a standard MIDI file with the csvmidi program.

Clementine is a multiplatform music player. It is inspired by Amarok 1.4, focusing on a fast and easy-to-use interface for searching and playing your music.

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.

B.Jumblr is a pattern-controlled audio stream / sample re-sequencer LV2 plugin.

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

Tuner is a minimalist radio station player to discover and listen to your favourite internet radio stations. The application consists of a radio station catalogue sourced from radio-browser.info, and has presets of selections of stations based on random, top, trending, genre.

This package provides the LV2 plugin "GxSuperFuzz", an analog simulation of the UniVox SuperFuzz pedal. In this simulation the trim pot, which is usually in the housing, is exposed as a control parameter. It adjusts the amount of harmonics.

Samplv1 is an old-school polyphonic sampler synthesizer with stereo effects.

Fogpad is a reverb effect in which the reflections can be frozen, filtered, pitch shifted and ultimately disintegrated. This is an unofficial port of the Regrader plugin created by Igorski. It is available as an LV2 plugin and a standalone JACK application.

amsynth is an easy-to-use software synthesizer with a classic subtractive synthesizer topology. Its features include: dual oscillators (sine, saw, square, noise) with hard sync; 12 and 24 dB/oct resonant filters (low-pass, high-pass, band-pass, notch); mono, poly, legato keyboard modes; dual ADSR envelope generators for filter and amplitude; LFO which can modulate the oscillators, filter, and amplitude; distortion and reverb effects.

This plugin for beets automatically obtains tag data from https://bandcamp.com/. It's also capable of getting song lyrics and album art using the beets FetchArt plugin.

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

Aj-snapshot is a small program that can be used to make snapshots of the connections made between JACK and/or ALSA clients. Because JACK can provide both audio and MIDI support to programs, aj-snapshot can store both types of connections for JACK. ALSA, on the other hand, only provides routing facilities for MIDI clients. Aj-snapshot is meant to be used from the command line.

Wolf Shaper is a waveshaper plugin with a graph editor. It is provided as an LV2 plugin and as a standalone Jack application.

MusicBrainz Picard is a music tagging application, supporting multiple formats, looking up tracks through metadata and audio fingerprints.

ArtyFX is an LV2 plugin bundle of artistic real-time audio effects. It contains a bitcrusher, delay, distortion, equalizer, compressor, and reverb.

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.

Pragha is a lightweight music player based on Gtk and sqlite. It is constructed to be fast, light, and simultaneously tries to be complete without obstructing your daily work.

QMidiRoute is a MIDI event router and filter. MIDI note, control change, program change and pitch bend events are logged, and can be filtered, redirected and transformed into other events according to MIDI maps defined as tabs in the main control surface.

MuseScore is a music score typesetter. Its main purpose is the creation of high-quality engraved musical scores in a WYSIWYG environment.

It supports unlimited staves, linked parts and part extraction, tablature, MIDI input, percussion notation, cross-staff beaming, automatic transposition, lyrics (multiple verses), fretboard diagrams, and in general everything commonly used in sheet music. Style options and style sheets to change the appearance and layout are provided.

MuseScore can also play back scores through the built-in sequencer and SoundFont sample library.

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

Zrythm is a digital audio workstation designed to be featureful and easy to use. It offers unlimited automation options, LV2 plugin support, JACK support and chord assistance.