This app has been recommended by one of our users:

Rocket Music Player is created to make things easy for you. You can play music lists, control the music from widgets, change the play mode from Normal/Random, listen to music on Chromecast device and much more!

If you sign up into the app, you get access to a cloud storage service for your music, album art downloading, artist pictures, playlist backup and restore between devices and auto tag editing. But by default, without registering you get many features as well. And you can upgrade to a better version of the app for even more extras if you don’t have enough!