Vinyls - Vinyls is a music player that lets you listen to your music without any complicated setup.
Oto Music - Oto Music is an Android music player app that features Chromecast support, an equalizer, a ton of music controls, and functionalities.
MD Vinyl - Vinyl widgets for Apple music
Pyro - Spotify music voting for parties
3D Surround Music Player - 3D Surround Music Player allows you to listen to music with exceptional sound clarity and exclusive features such as dynamic bass boost, virtual3d surround effects, and treble boost.
Discoverify - Spotify's Discover Weekly... But Daily