Original sentence: Olaf College in 1995, became a professional ensemble in 2000, and gives 60-80 concerts annually.Rehearsing and performing without conductor or music director, the group was founded at St
Edited sentence: New members are acquired through annual national auditions.Olaf College in 1995, and transitioned to a professional ensemble and non-profit organization in 2000.Rehearsing and performing without conductor or music director, the group began as a student ensemble at St