As I am crazy about music, especially live performances, how to explain that same band/act performs so well at some venues and not so well at others? Bear in mind both performances are live, hence 100% hifi.

Apart from different audience or energy around the place, or how musicians feel at the performance time, there must be something about acoustics or how sound engineers set up the place.

At least I felt that same musicians played "better" at different venue (where for my ears sound was better), so audience looked more involved into music, with more foot tapping, louder applause and cheers...

Regarding HiFi systems lying..... what is the point of excellent 100% hifi system, when maybe other less expensive system can LIE sweeter to me?
If I end up listening to more records and music, it is good lie to me