dream music

have you ever had a dream with music before, like in the background or live and the music that is playing is something you've never heard before. i had a dream last night with a lovely song playing in the background when i was sad. when i woke up i had to think about whether the song exists in real life and it doesn't. its so weird how the unconscious/subconscious mind can instantly create things like music or art just to go along with the dream. the cool thing is that i still remember the melody of the song and the lyrics to the hook and one word in a verse and even though in my minds dimension some other band made this song. in this world, i can make that song and i already know its good cause i heard it already.