To be in musical bliss (a) Similar condition to
Bjorkasims where you are surrounded by the power of the music, This condition is known by several names, this is one of the more vulgar.
(b)To have heard Bittersweet Symphony too many times, that your brain cells seem to have recorded the song and plays it back to you at the most in-oppotune times. This takes its name from a band of the 90's-00's which is famous for the songs Bittersweet Symphony and The Drugs Don't Work.