Who composed Lancelot, which centered on the adventures of a knight in King Arthur's court?

How many strings do violins, violas, and cellos have?

a. one b. two c. three d. four e. five

Since the Classical period, the word sonata means a work for

a. piano alone b. any instrument other than a piano c. piano alone, or for piano and another instrument d. two pianos e. two instruments other than pianos