OMP is described as '(Open Music Player) is an open-source music player for Linux. It's in an unstable pre-alpha state' and is an app in the Development category. There are seven alternatives to OMP for a variety of platforms, including Linux, BSD, Windows, Mac and Xfce. The best alternative is Clementine, which is both free and Open Source. Other great apps like OMP are Strawberry (Free, Open Source), Audacious (Free, Open Source), Rhythmbox (Free, Open Source) and Quod Libet (Free, Open Source).
Strawberry is a music player and music collection organizer. It is a fork of Clementine released in 2018 aimed at music collectors and audiophiles. The name is inspired by the band Strawbs. It's written in C++ using the Qt framework.
Audacious is an advanced audio player. It is free, lightweight, based on GTK+, runs on Linux and many other *nix platforms and is focused on audio quality and supporting a wide range of audio codecs. There is also support for several visual styles from Winamp.
Quod Libet is a Gapless GTK+-based audio player written in Python. Its designed around the idea that you know how to organize your music better than we do. It lets you make playlists based on regular expressions (dont worry, regular searches work too).
DeaDBeeF is a lightweight graphical music player created for easy playback of music and management of playlists. It supports major audio codecs and tags, global hotkeys, gapless playback, streaming audio, command line control, and has an 18-band equalizer.
Amarok is a powerful music player for Linux, Unix and Windows with an intuitive interface. It makes playing the music you love and discovering new music easier than ever before - and it looks good doing it!