Is There a Collaboration in the Making of Music?

i write for this particular chalice a lot and people say you know she's just such a force of nature or or christian is a perfect example as well like yeah i get excited to hear what she'll do with something so i i think about i don't sit down on a project and go oh you know it'd be great english horn would be great and how convenient i know christian. i say what can what can i where can christian fit in  and then i'll call her and say okay over your seven thousand instruments what's the most wispy and breathy choice? It's totally backwards from the way sometimes i'll work where it's i think of