Music Player for Google Drive is a simple and lightweight online music player for your audio files stored in Google Drive. Its is entirely client side and does not require any server side component.

Playback of MP3 files, MP4, OGG (Audio), WAV (very partial), ACC (iTune's .m4a files), webm (Audio).
Support for ID3 tags v1 and v2as well as AAC file Tags.
Automatic display of Album covers.
Handles users signed-in multiple Google account elegantly.
Open Audio files directly from the Google Drive UI.