In the above example in question 1, what are the key musical features of this genre?
a. the use of call-and-response between the winds and brass
b. the use of the 12-bar blues and tin pan alley song forms a fuller sound due to a larger band
c. the incorporation of "hot" syncopated music the use of written arrangements with little room for improvisation
d. the inclusion of "crooners" collective improvisation