4
First off… pros don't just decide they want to turn their amp up halfway through a gig. That's what sound crews are for; there's one guy whose job it is to make sure everyone on stage can hear themselves clearly.
That aside, at a large gig it wouldn't make the slightest difference front of house. There's not really a great deal of the actual amp's volume ...
1
Let me approach this by sneaking up on it from a different direction:)
Take a bass guitar. Low E is about 41Hz. Most people know what that sounds like & how it works when you hear it on records, etc.
Let's take a famous example. Queen - Another One Bites the Dust. Now this famous opening bass riff to all intents & purposes is in F - though if you ...
Only top voted, non community-wiki answers of a minimum length are eligible
