I think that's the point...no one goes to the bars for that watered down loud 4x4...it just makes people drink more...is easy to dance and doesn't distract you from getting hammered....like bad hip hop in the us
Loud music makes you have to talk a lot louder, which can have many desirable physiological effects.
The more you talk, and the louder you do it, the less you will be able to feel stifled and in that horrible self-monitoring mode.
The eventual effect is feeling less anxious, and more in the moment.
If you feel weird in loud bars it's because you are not talking loud for long enough.
I mean, try shouting and not feeling a surge of emotion race through you.
when i have to talk loudly out of necessity and not choice, it's usually more annoying than anything. Straining to be heard is not my idea of fun. Plus I'm slightly hard of hearing anyways so being in loudness just makes it harder than usual.
(slightly off topic: I'm pretty sure physically my hearing is fine but sometimes I just randomly have a hard time hearing/understanding people. sometimes it's that i don't catch the words at all and sometimes it's that I hear the words but they don't sink in immediately - those times, i usually say 'huh?' or similar but realize what they said right after, thus making people repeat themselves unnecessarily.)
Short answer - loud music makes you talk less and drink more, I can only assume faster music does the same.
Yes, faster music makes you drink faster.
That's also why restaurants often have slow ambient music, smooth jazz or something else that's really relaxed. It slows you down and makes you more probable to not want to leave just yet, so maybe you'll order coffees or a bottle of wine after the meal.
Music in general also screws up your sense of time, which is useful for for pretty much every business (: