(per service) OPERA PHILADELPHIA Corrado Rovaris, Music Director Announces auditions for the following openings: SECTION CELLO: SEPTEMBER 29 & 30, 2021 Application deadline: September 1, 2021 Audition repertoire TBD. Per-service Rates for the 2021 - 2022 season: $185.73 per rehearsal $269.31 per performance Principal bonus is 26% over per-service rates. Concertmaster bonus is 60% over per-service rates.