VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
AIMP - AIMP : Free Audio Player : Официальный сайт программы
Nightingale - Nightingale is a free and powerfull music player for Linux, Windows and Mac
GNOME Music - Music is the new GNOME music playing application.
foobar2000 - An advanced freeware audio player for the Windows platform.
Roon (Music Player) - Roon is a music playing application for audiophiles