ZynAddSubFX is a feature heavy realtime software synthesizer. It offers three synthesizer engines, multitimbral and polyphonic synths, microtonal capabilities, custom envelopes, effects, etc.

This package provides a Gtk4 GUI for the ALSA controls presented by the Linux kernel Focusrite Scarlett2 USB Protocol Mixer Driver.

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

This package provides a library to access iPod contents. It enables iPod support in music players such as Clementine.

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.

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.

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.

LMMS is a digital audio workstation. It includes tools for sequencing melodies and beats and for mixing and arranging songs. LMMS includes instruments based on audio samples and various soft sythesizers. It can receive input from a MIDI keyboard.

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

This package provides an Emacs major mode for editing GNU LilyPond music scores.

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.

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 set of LV2 plugins is a port of the internal modules found in Alsa Modular Synth. These plugins are used to create modular synthesizers and contain: VCO, VCF, VCA, LFO, slew limiter, envelopes, sample and hold, etc.

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

This project is a fork of the Android Open Source Project platform_external_sonivox. It is a Wave Table synthesizer, using embedded samples. It also supports external DLS soundfont files. It is also a real time GM synthesizer.

MediaFile is a simple interface to the metadata tags for many audio file formats. It wraps Mutagen, a high-quality library for low-level tag manipulation, with a high-level, format-independent interface for a common set of tags.

The Sherlock plugin bundle contains LV2 plugins for visualizing LV2 atom, MIDI and OSC events. They can be used for monitoring and debugging of event signal flows inside plugin graphs.

Playerctl is a command-line utility and library for controlling media players that implement the MPRIS D-Bus Interface Specification. Playerctl makes it easy to bind player actions, such as play and pause, to media keys. You can also get metadata about the playing track such as the artist and title for integration into status line generators or other command-line tools.

Sorcer is a wavetable LV2 plugin synthesizer, targeted at the electronic or dubstep genre.

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.

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.

This package provides a multi-channel MIDI step sequencer LV2 plugin with a selectable pattern matrix size.

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.