I remember as a schoolboy going to an all-Bartok concert at the Festival Hall in London. The conductor was Antal Dorati and the performance of Bluebeard’s Castle was recorded, I think by Mercury Living Presence. Anyway, the singer taking Judith’s part managed to ’drown out’ or at least cut through the entire orchestra playing fortissimo, when heard from the rear of the auditorium.
Subjectively, I think about 90% of the sound we hear at a symphony concert is reflected from the venue. Even outdoor venues need reflective shells over the orchestra to project the sound forwards.
If you ever get the chance, get yourself into an anechoic chamber. The absence of reflected sound is totally disorienting. The closest I have come to this in nature was sitting on the top of Iron Knob in South Australia looking out over the Nullabour plain, where only the ground reflected sound. The only sign of life was a dust trail on the far horizon as a lone vehicle headed for Perth, thousands of km away. Near total silence.
(I remember a review of a Jaguar being driven from Perth to Melbourne. On leaving Perth the GPS said ’at the roundabout take the second exit’. The roundabout was 980 km ahead).