Music Widget

The features I would like to have for a music widget:
1. Fastest way to play one playlist (album, artist, favorites, customized playlists)
2.Fastest way to launch something like Shazam when I hear nice song.
3. Basic features (now playing, play/pause, last song, next song, sequence or randomly)

Kindly press "L" on your keyboard if you like it. Thanks.