(Music Minus One). Beethoven’’s sonata for violoncello is a staple of the chamber repertoire; Telemann’’s duet sonata is a feast of 18th-century music at its finest: Includes accompaniments for both primo and secondo parts. Includes complete printed music score on high-quality ivory paper, including both primo and secondo parts for the Telemann Duet; and a compact disc containing a complete performance with soloist, then performed again minus the soloist. An additional version minus first ‘‘cello is provided so you can play either primo or secondo part in the Telemann Duet. Performed by Steven Thomas, violoncello Accompaniment: Steve Isaacson, piano