Airs Friday, May 6, at 12 noon. This week on Carnegie Hall Live the Saint Lawrence String Quartet will perform Haydn's String Quartet Op. 20, No. 5 in F minor; the Second Quartet by John Adams; and Beethoven's String Quartet in C-sharp minor, Op. 131. The Saint Lawrence String Quartet features Geoff Nuttall & Owen Dalby, violins; Lesley Robertson, viola; and Christopher Costanza, cello. Jeff Spurgeon and John Schaefer will host.