Original: Since he needed new arrangements every week for the show , his agent , John Hammond , suggested that he purchase '' hot '' ( swing ) arrangements from Fletcher Henderson , an African-American musician from Atlanta who had New York 's most popular African-American band in the 1920s and early 1930s .
Simplified: Since he needed new charts every week for the show , his friend John Hammond suggested that he purchase some Jazz charts from Fletcher Henderson , who had New York 's most popular African-American band in the 1920s and early 1930s .