I have been looking through some scores lately and wondered if anyone knows the answer to the following. When writing for the 4 french horns, why would you ask for horn no 3 in a solo part, as against say no 1 ?
I realise this would make sense on a long piece to rest the players and share the load but why start with no 3 when the solo is only a few bars and the other horns aren't used again for quite a few bars. Wouldn't you expect no 1 to be the better player ? In a longer section I found equally odd placings 1 and 4 for example. Aren't all the horns the same ? Could one tell if 2 and 3 played instead on 1 and 4 ?