Galaxy Music Player is a music player for Android 4.1 and higher devices focused on design simplicity and performance.

Features
•  Amazing user interface and animations with material design
•  Customizable interface with 75 color combinations to choose from
•  Last.fm integration for retrieving artist images and descriptions
•  Smart Playlists with fully customizable rules
•  Custom equalizers
•  Gapless playback
•  Home screen widgets
•  Remembers what you're listening to even after you close it.
•  Sleep timer
•  Gestures
•  Play music by album artist folder and genre.

And of course every feature you'd expect from a music player including playlist editing lockscreen controls and artwork and fluid navigation between all of your content