What social issue was Louis Armstrong able to transcend through his music and charismatic personality?

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Explanation:

Now, thirty years after his death, Armstrong's work as an instrumentalist and vocalist continue to have a profound impact on American music. As a black man living and working in a segregated society, he symbolized the civil rights struggle that was part of the changing America in which he lived

pitch- the definition of pitch is as follows:

"the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone."

the style of music that was composed during the classical era was concerto grosso.