Greg Cox wrote:
And, of course, there's always The Rocky Horror Picture Show.
I don't know if you're interested in books as well as movies and TV, but there are plenty of fantasy novels in which music has magical properties. Like The Armageddon Rag by George R. R. Martin or The Black Opera by Mary Gentle.
In the Trek novels, whenever the crew come across a musical species it is always the most amazing thing they have ever heard - anyone know if they have every encountered an alien race who's singing sounds like someone who has their gonads trapped in a vice?