Spectacle is a real-time spectral analyzer using the short-time Fourier transform, available as LV2 audio plugin and JACK client.

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

This package contains data files for use with Le Biniou.

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.

ZPlugins is a collection of audio DSP plugins intended to be bundled with the Zrythm digital audio workstation (DAW).

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.

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.

Cmus is a small and fast console music player. It supports many input formats and provides a customisable Vi-style user interface.

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.

Fabla is an LV2 drum sampler plugin instrument. It is ideal for loading up your favorite sampled sounds and bashing away on a MIDI controller.

This package contains LV2 ports of the following audio plugins:

• Dexed,

• dRowAudio plugins (Distortion, Distortion Shaper, Flanger, Reverb, Tremolo),

• DrumSynth,

• EasySSP,

• EQinox,

• HiReSam,

• JuceOPL,

• KlangFalter,

• LUFS Meter,

• Luftikus,

• Obxd,

• PitchedDelay,

• ReFine,

• StereoSourceSeperation,

• Swanky Amp,

• TAL plugins (Dub-3, Filter, Filter-2, Noize Mak3r, Reverb, Reverb-II, Reverb-III, Vocoder-II),

• Temper,

• Vex,

• Vitalium, and

• Wolpertinger.

Power Tab Editor 2.0 is the successor to the famous original Power Tab Editor. It is compatible with Power Tab Editor 1.7 and Guitar Pro.

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.

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.

This package provides an LV2 plugin that allows for pattern-controlled MIDI amp & time stretching to produce shuffle / swing effects.

Key features include:

1. MIDI velocity amplification and timing manipulation plugin

2. Swing and shuffle rhythms

3. Pre-generator dynamics

4. Tempo rubato

5. Pattern (sliders) or shape-controlled

6. MIDI filters

7. Smart quantization

This package provides the LV2 plugin "GxVintageFuzzMaster", a simulation of the vintage Fuzz Master pedal.

FMIT is a graphical utility for tuning musical instruments, with error and volume history, and advanced features.

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.

Luppp is a music creation tool, intended for live use. The focus is on real time processing and a fast and intuitive workflow. With extensive MIDI mapping support, you can get looping just how you like!

Music21 is a set of tools for helping scholars and other active listeners answer questions about music quickly and simply.

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.

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.

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.

Pure Data (aka Pd) is a visual programming language. Pd enables musicians, visual artists, performers, researchers, and developers to create software graphically, without writing lines of code. Pd is used to process and generate sound, video, 2D/3D graphics, and interface sensors, input devices, and MIDI. Pd can easily work over local and remote networks to integrate wearable technology, motor systems, lighting rigs, and other equipment. Pd is suitable for learning basic multimedia processing and visual programming methods as well as for realizing complex systems for large-scale projects.