Usage patterns
〈人〉が楽団を結成するfor someone to form a band/orchestra
He formed a band with his friends.
楽団に入るto join an orchestra/band
She joined the university orchestra.
楽団を指揮するto conduct an orchestra/band
A famous conductor leads this orchestra.
楽団が演奏するfor an orchestra/band to perform
A local orchestra performs at the hall.