Which artist won the competition for designer of the doors of the Florence Baptistery?

Two important tape-based consumer formats emerged in the 1960s; by the 1970s, this format was the

most popular:

a. audiocassette b. reel-to-reel c. four-track d. eight-track

The instruments in early jazz bands who took the lead and played solos were called

a. the rhythm section b. the concertino c. the obbligato d. the front line