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 is a program for recording sound files with JACK. It can connect to any JACK port and record the output into a stereo WAV file.

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.

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

DSSI is a plugin API for software instruments with user interfaces, permitting them to be hosted in-process by audio applications. It is intended to be simple, GUI-toolkit-agnostic, and slightly biased towards familiarity with MIDI. The DSSI distribution package contains a JACK/ALSA-sequencer reference host and some plugins as well as the specification and header.

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.

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.

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.

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.

GNU cursynth is a polyphonic synthesizer that runs graphically in the terminal. It is built on a full-featured subtractive synthesis engine. Notes and parameter changes may be entered via MIDI or the computer's keyboard.

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.

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.

The Non Timeline is a powerful, reliable and fast modular digital audio timeline arranger. It utilizes JACK for inter-application audio I/O and the NTK GUI toolkit for a fast and lightweight user interface. Non Timeline can be used alone or in concert with Non Mixer and Non Sequencer to form a complete studio.

PortMidi is a library supporting real-time input and output of MIDI data using a system-independent interface.

PianoBooster is a MIDI file player that displays the musical notes and teaches you how to play the piano. The difference between playing along to a CD or a standard MIDI file is that Piano Booster listens and reacts to what you are playing on a MIDI piano keyboard. You can play along to any track in the MIDI file and Piano Booster will follow your playing.

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

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.

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

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.

Qtractor is an Audio/MIDI multi-track sequencer application. It uses JACK for audio and ALSA sequencer for MIDI as multimedia infrastructures and follows a traditional multi-track tape recorder control paradigm.

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

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.

This module searches the MusicBrainz database through their web service at musicbrainz.org.

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.