my brother isn’t THE musician I will be traveling with, although my brother is a musician. My brother probably would not join me
My travel friend is a early jazz professional musician
I would be visiting with him (my brother) in OKC before or after (maybe both) the shoot & time in Texas, NM etc.
A corallary to yer tagline:
“If ya want to make God laugh, tell him what YOUR plans for your life are”