Which Northern European city was an early center of art commerce, particularly through its annual merchants fair where paintings, cloth, jewelry, and other artisan-produced products were sold?

Which of the following artists recorded many of the signature recordings of the bebop era?

a) Duke Ellington and Johnny Hodges b) Louis Armstrong and Ella Fitzgerald c) Charlie Parker and Dizzy Gillespie d) Billie Holiday and Lester Young

The type of music favored by San Francisco Hippies in the 1960's was called ________.

Fill in the blank(s) with the appropriate word(s).