Best Music Player - Clementine

This player is amazing, works on Mac/Linux/DOS . So you can have the same player no matter what OS you are stuck with. It's super-fast compared to other popular players. Whereas other SQL-based players choked scanning my library this one had no problems. It's free as in freedom open-source. It's fast and easy to use with fully customizable hot-keys (if your OS lets you do that). I hope it becomes the default player in KDE.

Clementine: http://www.clementine-player.org/