Bes Music is a Music Player that synchronizes your Music from OneDrive. It allows you to Download your OneDrive music and sync Playlists across devices. It also supports Windows 10 Mobile.
It aims to replace Groove since it dropped support for OneDrive and it is no longer possible to sync your Playlists between Devices.
This Project is Open Source and its code is released under MIT License. Feel free to check it out.
Be aware that it does not support playback of local Files that the App did not sync it self. Nor does it support Streaming.