Grieg for Gimli, Schumann for Saruman

[Encaitare]

I don't think it's a step too far, I like that idea. Which three hobbits would you say? Frodo, Sam, and Bilbo?

there is tension but no discord no argument

Very true. Each instrument is equally important and plays in accordance with the theme, without competition, as though they have this deeper understanding of one another as the characters truly do by the time they reach the Havens.