Orchestral works? It's a vast field, you know. From the sixteenth to twentieth-first
century, roughly. (hahaha...

Going back to opera for a moment, last summer I went to see a concert performance
of Mussorgsky's Boris Godunov under Gergiev and the Kirov in London.
It was overwhelming. Especially the chorus... Unfortunately I didn't know the work
very well then. I'm getting to know it now.