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

Flacon extracts individual tracks from one big audio file containing an entire CD of music and saves them as separate audio files. To do this, it uses information from the appropriate CUE file. Also, Flacon makes it possible to conveniently revise or specify tags both for all tracks at once or for each tag separately.

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.

B.Choppr cuts the audio input stream into a repeated sequence of up to 16 chops. Each chop can be leveled up or down (gating). B.Choppr is the successor of B.Slizr.

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.

LSP (Linux Studio Plugins) is a collection of audio plugins available as LADSPA/LV2 plugins and as standalone JACK applications.

Helm is a cross-platform polyphonic synthesizer available standalone and as an LV2 plugin.

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).

WhySynth is a versatile softsynth which operates as a plugin for the DSSI Soft Synth Interface. A brief list of features:

1. 4 oscillators, 2 filters, 3 LFOs, and 5 envelope generators per voice.

2. 11 oscillator modes: minBLEP, wavecycle, chorused wavecycle, asynchronous granular, three FM modes, waveshaper, noise, PADsynth, and phase distortion.

3. 10 filter modes.

4. flexible modulation and mixdown options, plus effects.

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.

This package provides Python bindings for the Libdiscid library. The main purpose is the calculation of Disc IDs for use with the MusicBrainz database. Additionally the disc Media Catalog Number (MCN) and track International Standard Recording Code (ISRC) can be extracted.

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.

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.

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

Schism Tracker is a reimplementation of Impulse Tracker, a program used to create high quality music without the requirements of specialized, expensive equipment, and with a unique "finger feel" that is difficult to replicate in part. The player is based on a highly modified version of the ModPlug engine, with a number of bugfixes and changes to improve IT playback.

Bristol is an emulation package for a number of different classic synthesizers including additive and subtractive and a few organs. The application consists of the engine, which is called bristol, and its own GUI library called brighton that represents all the emulations. There are currently more than twenty different emulations; each does sound different although the author maintains that the quality and accuracy of each emulation is subjective.

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.

Fluida is an audio plugin in the LV2 format that acts as a frontend for fluidsynth.

mididings is a MIDI router/processor based on Python, supporting ALSA and JACK MIDI. Features include:

• MIDI routing and filtering; filter events depending on their event type, channel, note number, velocity, etc., and freely route them between an arbitrary number of input and output ports.

• Modifying and converting MIDI events; transpose notes, apply velocity curves, change controller values and ranges, or convert events to any other MIDI event type. mididings also includes more complex functions like a diatonic harmonizer, floating split points, latched notes, and more.

• Seamless switching between patches; set up different "scenes", each with its own MIDI routing and processing, and switch between them at any time, even while playing. Switching scenes does not affect notes already held, and does not result in dropouts or stuck notes!

• MIDI event monitoring, running external commands; print MIDI event data to the console to help debugging your patches and configuring your MIDI controllers. In addition to its MIDI output, mididings can also execute shell commands and send OSC or DBUS messages.

Regrader is a delay effect where the repeats degrade in resolution. This is an unofficial port of the Regrader plugin created by Igorski. It is available as an LV2 plugin and a standalone JACK application.

Samplebrain chops samples up into a 'brain' of interconnected small sections called blocks which are connected into a network by similarity. It processes a target sample, chopping it up into blocks in the same way, and tries to match each block with one in its brain to play in realtime.

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

The Non Sequencer is a powerful, lightweight, real-time, pattern-based MIDI sequencer. It utilizes the JACK Audio Connection Kit for MIDI I/O and the NTK GUI toolkit for its user interface. Everything in Non Sequencer happens on-line, in real-time. Music can be composed live, while the transport is rolling.

GXtuner is a simple guitar tuner for JACK with an analogue-like user interface.