Back during the time when the events of this movie happened, my brothers were GOING to these shows. They were heavily involved. One of my brothers went on to be in his own (second wave - later 80's) thrash bands from the Bay, and now tours with large bands as a drum tech and/or sound engineer and/or stage manager :) And that was his journey, and he's in his element and home :)
It never felt much like my home though. My home and journey has always veered directly into more strange and wonderful places, to me. As my brother's joy would be watching this movie, mine is waiting for and then playing Classic WoW, slowly learning how to get around in Elder Scrolls Online, setting up a new D&D campaign for friends and family, and ripping apart and putting together frankensystems :) It's looking forward to seeing how The Wheel of Time series is filmed (and hoping that it's at GoT standards for televised high fantasy series :) ) It's hearing Palpatine in the new Star Wars trailer and nearly flipping out. It's re-watching the Stargate series and being happy in my yearly re-watch :) I have found so many geeky and nerdy and crafty delights that music is always a soundtrack, but not my life.
That's why a few channels on Twitch feel a bit like "home". :) Like Cheers, as Loctite said. You go into a channel and lots of people know your name :) You go into Discord and have actual fun and conversations with people, all of them sharing so many of the same nerd interests. Unlike when I was 12-16 (the era this movie covers), I don't have to feel any shame anymore in being the nerd I have ALWAYS been. Back them I hid it as much as possible. I didn't have to hide it from my brothers, but for most people, it was NOT a good thing back then to be a nerd. So I'd put on the denim jacket with the various buttons I had, and wear the 501s and various T-Shirts, and try to stifle myself. For a few years I did that, until at 17 I just said "Nah. I am who I am." My 18th birthday party was a weekend long camping trip and D&D game up in the redwoods :)
Now of course EVERYONE is a geek or a nerd. And that makes me happy also :) It's like everyone finally said "No, this is ok, to have intense interest in these things!"
And I finally came around in my thinking... every single one of the people in this movie, as cool and whatnot as they are? They're nerds too :) They're music nerds. Some of them are also Star Wars nerds, and this sort of nerd, or that (my brothers love reading Drizzt and playing D&D with me). Nerdism is PASSION. This is a movie of passion. So though it's not my crowd, and not my lifestyle (I think if I asked Alex Skolnick what his main was in WoW he'd look at me funny - I could be wrong, but probably), I can appreciate the passion. :)
So that was the movie trailer, and now, I'll put up my little world of music that makes ME happy and feel like home, and we'll all just consider ourselves neighbors in geekdom :)