DeaDBeeF lets you play variety of audio formats, convert between them, customize the UI almost any way you want, and use many additional plugins which can extend it even more.
Keob
Simple music player.
Lollypop
Lollypop is a new GNOME music playing application.
Sere ni Deepin
It is an awesome music player with brilliant and tweakful UI Deepin-UI based.
Kena
A simple music player.