Who was the Central-European composer who, following a lead from Dvorak, brought folk music across into the classical intimacy of the string quartet, including writing a movement in the folk time-signature of 10/8 (subdivided as 3 + 2 + 2 + 3)?

While many of us love the pageantry of a great musical occasion ~ such as an oratorio, concerto or symphony concert ~ the intimacy of chamber music, played perhaps by a string quartet, has charms and powers of its own.