Vienna"s 18th- and 20th-century musical worlds meet on this new CD of chamber music. Mozart and Schoenberg are a delightful and enlightening pairing of the first and second Viennese schools. Though classical 18th-century chamber music would seem to have little in common with 20th-century atonal music, the two pieces are more closely related than one might expect. Both include a choir of 13 instruments (the Berg also includes solo piano and violin parts) and both refer to the same musical structures. Boulez and Uchida, two of the great intellectual and musical minds of our time, meet for this new recording. They previously collaborated on the 2001 Gramophone Magazine Award Winning recording of Schoenberg"s Piano Concerto paired with solo piano works by Schoenberg, Berg and Webern.