I did a quick google and nothing really popped up In Los Angeles yo need to know somebody usually to get into the studios. I got nothin.
Guitar center Hollyweird is always fun they have seminars at 10 AM every Saturday....and Peavey Hollywood is right across the street.
The grammy museum is very cool and right next to the Staples center which is right next to the corner of 9th and Figueroa where the infamous Pantry resides....awesome sour dough, coleslaw and Americana comfort food...Open 24 hours a day since 1924 and has never closed it's doors...ya gotta go there for breakfast...damn! anytime of day....
To be hip to what's going on go online musically and just stay in tune with whats up
LA WEEKLY
Lastly disregard the geographically challenged advice to not eat a burger at In-n-Out.....(I guess somebody oversold him on what to expect and he was less than impressed) In-n-out is a California phenom, the first of it's kind..Is it the best burger you'll ever eat? not likely ...is it the best fast food burger chain burger you'll ever eat? Quite possibly and definitely the freshest...also their burger sauce is the bomb... Order your burger "Animal style" ...the fries are peeled and sliced fresh on site..
Good luck on your journey... The waves have been HUGE they might still be when you get here...Huntington Beach is SURF CITY USA