Rhythmbox
https://gitlab.gnome.org/GNOME/rhythmbox/raw/master/data/icons/hicolor/scalable/apps/org.gnome.Rhythmbox3.svg
Rhythmbox is a music playing application for GNOME.
1. Getting in Touch
#gnome-rhythmbox on irc.libera.chat
GNOME Discourse (category: Applications, tag: rhythmbox)
2. Bug Reporting
3. Contributing
4. Flathub
5. Development Resources