VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
foobar2000 - An advanced freeware audio player for the Windows platform.
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.
keezy - A colorful soundboard. Play with music.