Exaile: Music Player for GTK+ designed after the classic Amarok 1.4 interface.
Ranked in these QuestionsQuestion Ranking
Pro A lot of built in plugins
Exaile comes pre-loaded with a lot of plugins so users can customize the application how they see fit.
Pro Trimmed down interface
Exaile excels for being a simple to use music player that is not filled with a lot of guff.
Pro Can handle large libraries
Exaile utilizes an SQLite database to store information and in doing so can handle users large music libraries.
Exaile has a built in equilizer.
Con Built on GTK2
Exaile is an older app that is still built with GTK2. SO it may look out of place in a GTK# desktop environment.