It's a program symphony, kinda like your Adriana thing. A friend of mine wrote a comical story about a high school symphony orchestra, and it's basically in 5 movements, Intro, The Evil Ones, The Overdramatic Ones, The Romantic Ones, and epilogue. Basically, this is a bunch of little stories going on, and a bunch of conflicts (2 people get killed) but everyone finally settles for the final concert. So, this is for symphony orchestra, because the story is about a symphony orchestra, and the waltz is supposed to be for "The Romantic Ones" which is a combination of all the love stories (there's a cute gay relationship between the pic. and bassoon, 2 cellos love/hate each other, there's this big love triangle thing in the brass, and the trombone's a cat in heat), so...there.