Drumstick is a set of MIDI libraries using C++/Qt5 idioms and style. It includes a C++ wrapper around the ALSA library sequencer interface. A complementary library provides classes for processing SMF (Standard MIDI files: .MID/.KAR), Cakewalk (.WRK), and Overture (.OVE) file formats. A multiplatform realtime MIDI I/O library is also provided with various output backends, including ALSA, OSS, Network and FluidSynth.

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.

libdiscid is a C library for creating MusicBrainz and freedb disc IDs from audio CDs. It reads a CD's table of contents (TOC) and generates an identifier which can be used to lookup the CD at MusicBrainz. Additionally, it provides a submission URL for adding the disc ID to the database and gathers ISRCs and the MCN (=UPC/EAN) from disc.

Dragonfly Reverb is a bundle of two free audio effects: a concert hall reverb and a room reverb. Both are available as LV2 plugins as well as JACK standalone applications.

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.

This package contains data files for use with Le Biniou.

abjad-ext-rmakers includes a collection of classes for creating and and manipulating rhythms such as accelerandi, taleas, and more.

This package provides the LV2 plugin "GxHyperion", a simulation of the Hyperion Fuzz pedal.

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!

Frescobaldi is a LilyPond sheet music text editor with syntax highlighting and automatic completion. Among other things, it can render scores next to the source, can capture input from MIDI or read MusicXML and ABC files, has a MIDI player for proof-listening, and includes a documentation browser.

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.

Libpd provides Pure Data as an embeddable audio synthesis library. Its main purpose is to liberate raw audio rendering from audio and MIDI drivers.

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.

abjad-ext-rmakers includes a collection of classes for creating and and manipulating rhythms such as accelerandi, taleas, and more.

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.

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

Libgig is a C++ library for loading, modifying existing and creating new Gigasampler (.gig) files and DLS (Downloadable Sounds) Level 1/2 files, KORG sample based instruments (.KSF and .KMP files), SoundFont v2 (.sf2) files and AKAI sampler data. The package includes a couple of command line tools based on the library.

MilkyTracker is a music application for creating .MOD and .XM module files. It attempts to recreate the module replay and user experience of the popular DOS program Fasttracker II, with special playback modes available for improved Amiga ProTracker 2/3 compatibility.

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

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

XUiDesigner parses an LV2 plugin's ttl file and generates the needed controller widgets. The created GUI can be saved as UI-Bundle, which then could be built and installed. For later editing of the UI, a JSON file is added, which you could load per drag 'n drop into XUiDesigner.

Zam plugins is a collection of audio processing plugins in the LADSPA, LV2 and VST2 formats, as well as standalone JACK versions. The collection includes ZaMaximX2, ZamAutoSat, ZamComp, ZamCompX2, ZamEQ2, ZamGEQ31, ZamHeadX2, ZamPhono, ZamGate, ZamGateX2, ZamTube, ZamDelay, ZamDynamicEQ, ZaMultiComp, ZaMultiCompX2 and ZamSynth.

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

isrcsubmit is a tool to extract International Standard Recording Code (ISRCs) from audio CDs and submit them to MusicBrainz.