Headset
Headset – free and open source, multi-platform YouTube and Reddit desktop music player
Blanket
Blanket is a free and open source program for improving concentration and productivity by listening to different sounds.
mpz
mpz is a free and open source software for listening to audio, a music player for large collections
Shortwave
Shortwave is a free and open source software for searching and listening to Internet radio stations
Goodvibes
Goodvibes – free and open source, lightweight and simple software for listening to radio online, Internet radio player
MellowPlayer
MellowPlayer is a free and open source software for listening to music from various cloud services in a single desktop application window
Frets on Fire
Frets on Fire is a free and open source multiplatform game where the player simulates the performance of a musical composition using the keyboard
Tuner
Tuner is a free and open source program for searching and listening to Internet radio stations
GNOME Clocks
GNOME Clocks is a free and open source simple program that includes world time, alarm clocks, stopwatch, and timer
fre:ac
fre:ac is a free and open source, multi-platform audio converter and CD ripper with an integrated tag editor