
Mopidy
Music server with support for MPD and HTTP clients
Mp3splt-gtk audio splitter
Split mp3 and ogg files without decoding
MPDCon
GNUstep client for MPD
Music Player Daemon
MPRIS 2 support for MPD

mpv Media Player
Play movies and songs

MusE
Midi Music Editor
ClipGrab
Download videos and convert it
mx44
Polyphonic, multichannel midi realtime software synthesizer

MythTV Frontend
A frontend for all content on a mythtv-backend
Noise
Listen to music

Nekobee
Acid sounds synthesizer

Open Cubic Player
Open Cubic Player 0.2.0 for UNIX
PulseAudio Device Chooser
An Applet for Quick Device Changing
Patchage
Connect audio and MIDI applications together and manage audio sessions

paulstretch
Pauls Extreme Audio Stretch
PulseAudio Volume Control
Adjust the volume level

Petri-Foo
Sound Sampler

PHASEX
Phase Harmonic Advanced Synthesis EXperiment

MusicBrainz Picard
Tag your music with the next generation MusicBrainz tagger

Rosegarden
MIDI and Audio Sequencer and Notation Editor
Poe
Vorbis comment editor
projectM Jack Audio Visualization
A milkdrop based music visualizer visualizing JackAudio streams on a Qt5 GUI
Pure Data
Visual dataflow programming platform for multimedia
pyMapperGUI
Graphical User Interface for libmapper
E-Pyo
Sound synthesis and audio signal processing environment
QARecord
Simple but solid audio recording tool
QasConfig
ALSA configuration browser
QasHctl
ALSA HCTL mixer
QasMixer
Graphical mixer application for the ALSA

QHiMDTransfer
Transfer software for Sony HiMD Walkman

QjackCtl
QjackCtl is a JACK Audio Connection Kit Qt GUI Interface

QJackRcd
A simple Jack recorder
QMidiArp
Arpeggiator-Sequencer-LFO

QmidiNet
QmidiNet is a MIDI Network Gateway via UDP/IP Multicast
Qmmp
Qt-based Multimedia Player

qrq
High speed Morse telegraphy trainer
Qsampler
Qsampler is a LinuxSampler Qt GUI Interface
QtGain
Mp3Gain, VorbisGain, AACGain and Metaflac frontend
Qtractor
Qtractor is an Audio/MIDI multi-track sequencer application

Quod Libet
Listen to, browse, or edit your audio collection

Rakarrack
Real-time audio effects processing rack for guitar
Rhythmbox
Play and organize your music collection

Ripper X
Rip Cds
samplv1
samplv1 is an old school polyphonic sampler

SuperCollider Vim
Vim environment for SuperCollider