Here are a couple of additions.
Alex Ross, blogger, New Yorker notational music critic, and prize-winning author, comes to Herbst on a tour with pianist Ethan Iverson of The Bad Plus. Together, they'll perform The Rest is Noise. This I have to see! 10 a.m., Saturday, April 24. $36 and $24.
This month, LA Opera presents Goetterdaemmerung and Franz Schreker's Die Gezeichneten. Click the link above for dates, times, and prices for both. Hint: the weekend of April 23 to 25, you can see the Schreker Saturday night and the Wagner Sunday afternoon. I may be off to the airport immediately following Alex's event.