I know it is too late, but C. Rock Paintings, is the correct answer :)
Answer:
The surge of Jazz music was emphasized in America during the twentieth century. One reason is that during WWII, Hitler had an infatuation over 'tonal' and 'German' sounding music. Specifically, Beethoven and Wagner. Jazz music was banned as it was seen as a lower form of music. Due to this, composers at the time, strove away from writing music that would sound like Wagner's or Beethoven's. I'm not really sure how to word it, but those two composers had this particular sound. Anyway, composers started to use 'weird' harmonies. Things that would eventually become the sound of the 'modern' period in classical music. Another factor involved in advancing American classical music is the entwining of classical music and African folk songs / music. Gershwin, a super important composer, is kind of like the defining bridge between Classical music and Jazz. He had spent around two years, living in an African American community, where he was able to use rhythms and harmonies in African music and use it in his own compositions. Think like his piano preludes or Rhapsody in Blue.
Answer:
The Great American Songbook
Explanation:
<u>"The Great American Songbook" is a collection and canon of the most significant jazz standards and popular song that influences American culture from the beginning of the 20th century and continues to do so today.</u> It is sometimes referred to simply<u> “American Standards”. </u>
Some of the artists included are Harold Arlen, Cole Porter, George Gershwin, and Richard Rodgers. It also includes many popular Broadway, Hollywood, and theater music pieces. <u>They are considered to be basic knowledge of all jazz musicians, even in the modern age.</u>
It was considered to be too commercial and vulgar to earlier artist.
Hope, this helped!