Help I literally have no idea

The author uses onomatopoeia in the words "Bam, bam, bam".

Explanation:

Onomatopoeia is the way words are formed according to the sound that is produced. This means that the words that represent a sound are the same as the exact way it sounds.

This means that the word "bang" or "hiss" or "buzz" are onomatopoeic as they not only represent the sound it makes but also are the spellings for those words. And in the given passage, the author uses onomatopoeia in the words "Bam, bam, bam".

Thus, the author's use of onomatopoeia in the passage is "Bam, bam, bam."

harlem's  cotton club boasted the talents of duke ellington. singers such as bessie smith and billie holiday popularized blues and jazz vocals. jelly roll morton and louis armstrong drew huge audiences as white americans as well as african americans caught jazz fever.