VLC is a free and open source cross-platform multimedia player and framework that plays most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols.
All-in-one music player with SoundCloud, YouTube, last.fm and the unlimited cloud storage integration for Mac and iPhone.
Clementine is a music player and library organizer inspired by Amarok 1.4.
Sylo is a music players that gives users the option of centralizing all their music (both files and service subscriptions) in just one convenient place.
High quality library manager, streaming and remote control.