Nightingale is a free and powerfull music player.

Features:

• Plays MP3, WAV, Ogg, FLAC and many more
• Supports OGG Theora and other formats, depending on the platform
• Uses the system's gstreamer on Linux
• Customizable with many add-ons
• Can look just like you want it to, thanks to feathers
• Powerful library organization and browsing
• Fast full text library search
• Integrated browser