Emerson String Quartet / Jeremy Denk (Carnegie Hall, June 7 and 10 at 6:45/8). The best string quartet in America plays two mixed bills, each preceded by a related miniature recital by the pianist-blogger. On June 7, Denk plays Charles Ives’ “Concord” Sonata, followed by quartets of Brahms, Beethoven, and Ives. On June 10, Denk plays Béla Bartók’s Piano Sonata, Anton Webern’s Variations, and Beethoven’s Thirty-Two Variations in C Minor, after which the Emersons perform quartets by the same three composers. These concerts are part of “The Quartets in Context,” a Beethoven quartet cycle currently being presented by the Emersons at Carnegie Hall. What a fabulous idea! (TT).