Much like the great religions of the world, the institution of classical music is rooted in centuries of tradition and culture. For me, attending a classical music event in some ways feels the same as attending a Catholic Mass.
The “priest” during a classical musical event is the conductor. We may not applaud during a Mass, or kneel during an orchestra’s performance, but we do rise, sit, and applaud at prescribed times throughout a classical music performance that conceivably dates back several centuries.
