DoubleTwist have launched Cloud Player.

CloudPlayer is a next-generation music player that can manage and stream your personal music collection no matter where it’s stored. It supports hi-fidelity lossless audio, and universal casting to Chromecast and AirPlay devices. For example, you can stream a song from your Google Drive, OneDrive or Dropbox to your Apple TV or Chromecast. You can even link multiple cloud services, which comes in handy when you have a large music library or wish to listen to music uploaded by another family member.

CloudPlayer features a snappy material design UI, premium sound, lossless audio, bass boost, 10-band EQ, ability to select songs and playlists for offline playback, and built-in AirPlay and Chromecast support.

This sounds like a good idea if own vasts amounts of music and want to use dropbox and onedrive.