BARBER: Dover Beach. String Quartet. ROCHBERG: String Quartet No. 7.
BARBER: Dover Beach. String Quartet. ROCHBERG: String Quartet No. 7. Leslie Guinn, baritone; Concord String Quartet. NONESUCH 78017, produced by Marc J. Aubort and Joanna Nickrenz, $8.98. Samuel Barber’s setting of Dover Beach, composed when he was 21, is one of his most flawless creations. …