Hi, D2025! The HOW TO SUCCEED event was at American Cinematheeque, which screens classics, sometimes with talkbacks like this. I suggest signing up for their emails, and if you like more obscure shows, check out Musical Theatre Guild in Glendale. They do one night only concert staging of (usually) rare shows. The quality isn't always top notch, given they do the shows in four days' rehearsals, but how often can you see ONE TOUCH OF VENUS or JUBILEE?
Welcome to LA!
Laura, way up in Chatsworth ("so far north, it's practically off the grid")