Couple of years ago Richard Thompson at Bridgewater. Support act sound was fine in the 'gods'. RT came on, never heard a single word sung all night in the muddy mix. People in the stalls said it was OK.
A few weeks later Barbara Dickson did a full blown folk rock concert and the sound was superb. Same venue, same seats.
Went to a concert at Bridport. Jim Moray and friends. Small venue with the bass drum miked up. Never heard a single note of Jim's tasty looking guitars all night. Lots of good individual elements that mixed up to a mingy pulp.