This program is an audio player, written with the help of the Qt library. The user interface is similar to winamp or xmms. An alternative user interface is also available.

qmmp.ylsoftware.com
sourceforge.net/projects/qmmp-dev

qmmp-modern

An attempt to support “modern” Winamp skins in a Qmmp plugin.

github.com/seppd/qmmp-modern