I think we can all agree how effective this works in film (for the simple reason we hear it) but how about in fiction. Can it work on any level? For the last couple of days I've been writing a section of my novel set at an open-air music festival. Because the festival is a celebration of 50s rock'n'roll, I've had a youtube playlist of skiffle, rockabilly / hillbilly music playing, and it's really helped me paint the scenes. My worry, though, is that this just won't come across to a reader, unless by some huge coincidence they just happen to be listening to similar music at the time. I know that as writers we should never try and force, or even expect, a reader to share the same thoughts and feelings we have when writing a piece, but it would be nice to think we can summon a stimulating experience, at least, and I wonder how much the music here plays a part in my own enjoyment of the scene, given, as I say, I was listening to the same stuff on youtube as I wrote it.