I hear music and sounds in my dreams somewhat often, usually ambiance.
Usually i dont really remember my dreams, but i can hear music before dreaming, especially if i didnt slept for about 24 hours or more.
This shit is spooky as fuck
The one time in my life I have heard music in my dream was the song FIRST DAWN, AMBER WIND by Alstroemeria Records. It was 'playing' so loud that I think it caused me to wake up, although the room was completely silent when I did.
I love my dream music, though it is rare. I often hear synth or rock music and it's always the most bestest thing that ever resonated in my brain. Once I wake up however, it's incredibly hard to recall even the basic melody or instrumentation.