VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Jeskola Buzz - Jeskola Buzz is an all in one digital audio workstation that allows you to edit music with the perfect blending by using modern tools and technology.
AIMP - AIMP : Free Audio Player : Официальный сайт программы
Tracktion - Tracktion is a multi-platform software for music production, with a modern graphic user interface.
foobar2000 - An advanced freeware audio player for the Windows platform.
Renoise - Renoise is a digital audio workstation.