Catch a free simulcast on AT&T Park’s high-definition scoreboard of the San Francisco Opera production of Lucia di Lammermoor by Gaetano Donizetti at 8 p.m. on June 20th. To sign up for this free event, please visit sfopera.com/simulcast.

If opera isn’t your thing, perhaps you’d be interested in the Treasure Island Music Festival on Saturday, September 20th and Sunday, September 21st. The line up currently includes The Raconteurs, Justice, Tegan & Sara, TV on the Radio, Vampire Weekend, and Goldfrapp (among others). Early bird tickets go on sale Thursday, May 29th.

Also, Goldstar is a good source for discount tickets for theater, music performances, and even some San Francisco Giants games.