[UPDATE] Qmmp v0.12.1October 13, 2019
Qmmp (Qt-based Multimedia Player) is an feature player music player which supports many well-known formats, global hot-keys along with CUE sheets. The app supports ReplayGain support, visualization, lyrics, and cover art, tray control, CDDB and format conversion device detection and more. Formats contain pls m3u and xspf.
Contains a variety of plugins such as stereo correction, crossfade, stereo-to-mono plus much more.
The app is cross-platform (FreeBSD, Linux), written in C++ and Qt, also supports 26 globe languages.