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.

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

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.

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.

DUMB is a tracker library with support for IT, XM, S3M and MOD files. It targets maximum accuracy to the original formats, with low-pass resonant filters for the IT files, accurate timing and pitching, and three resampling quality settings (aliasing, linear interpolation and cubic interpolation).

This package provides the LV2 plugin "GxToneMender", a clean boost effect with a 3-knob tonestack.

This package provides the LV2 plugin "GxSaturator", a saturation effect.

Curseradio is a Curses-based radio player that uses a tune-in sender list from http://opml.radiotime.com.

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

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

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

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.

setBfree is a MIDI-controlled, software synthesizer designed to imitate the sound and properties of the electromechanical organs and sound modification devices that brought world-wide fame to the names and products of Laurens Hammond and Don Leslie.

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.

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

This is the continuation of the official Discogs API client for Python. It enables you to query the Discogs database for information on artists, releases, labels, users, Marketplace listings,and more. It also supports OAuth 1.0a authorization, which allows you to change user data such as profile information, collections and wantlists,inventory, and orders.

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 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.

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.

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

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.

MusE is a MIDI/Audio sequencer with recording and editing capabilities. Its audio sequencer supports the LADSPA, DSSI, and LV2 audio plugin formats; the MIDI sequencer provides a piano roll, a drum editor, a list view, and a score editor. MusE aims to be a complete multitrack virtual studio.

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.

Sfizz provides an SFZ parser and synth C++ library. It includes LV2 plugins and a JACK standalone client.