I use to dream in music. But, only when pregnant. LOL I had little rhythms that would stick in my head and one lullaby like tune that when I slept I would dream it like the philharmonic was playing it then hum it to my babies to get them to sleep. I still remember bits and pieces of it but, though I can read music, I can't interpret the notes I am hearing into notes on a sheet so, It never got written down.