Today’s Beautiful Music is a performance by the ensemble Quicksilver of a Sonata by Heinrich Biber. This is such a delightful performance, but I’d like to call your attention specifically to two of the instruments. First, right in the middle of the group is a man seated, holding an enormous instrument with a super-long neck. That is Charles Weaver playing theorbo. It’s the bass member of the lute family. The other instrument looks like a trombone. It’s called a Sackbut, and it’s a much earlier version of the trombone. Greg Ingles is the sackbut player.