Which leitmotive opens the excerpt from Das Rheingold known as "Entrance of the Gods into Valhalla"?

Which of the following has NOT been a part of the Jazz at Lincoln Center program?

a. Competitions b. Commissions c. Educational Programs d. TV shows

The stride style playing of piano evolved from

a. ragtime b. classical playing "boom-chick" approaches c. an attempt to imitate the bass drum?snare patterns of drum sets d. minstrelsy