It is always good to know how your concert schedule is going to play out, and this week things could not be any clearer (and none of these events has sold out). Here is your list of what’s good, what’s free, and even some of what’s both. THE BIG GUNS: >> A couple years ago, soprano Anne Schwanewilms was in the news because she replaced Deborah Voigt, when the latter could not fit into a…

Richard Strauss’s Salome (1905) helped set the tone for iconoclastic opera in the 20th century. Shattering most of the genre’s conventions — formulaic plots, vocal characterization, propriety — this tale of lust, incest, and decollation may still shock some viewers, but it has become a modern classic. Although Washington National Opera last staged it as recently as 2002, Washington audiences should be pleased to have another chance to hear it, in an excellent concert version…

FRIDAY: >> You don’t need us to tell you any more about local heavyweights Benjy Ferree, Meredith Bragg and the Terminals, or Greenland. But tonight is Ferree’s first time headlining at Black Cat’s mainstage, so don’t forget to show up and lend your support. 9 p.m., $10. SATURDAY: >> Guitarist Nick Zinner of the Yeah Yeah Yeahs will spin a DJ set at the Rock and Roll Hotel. $10 after 10 p.m., free before. >>…

The classical music schedule in Washington is starting to fill up, so that by February and March, we will be overwhelmed. Here are a few sure bets this week, as well as a smattering of concerts off the beaten path. THE BIG GUNS: >> Soprano Deborah Voigt has always had a big, gorgeous voice. She made news two years ago when she was fired from a production because the director wanted her character to wear…