Name two locations in new york city that were popular jazz clubs in the 1920s

In 1920s the two popular jazz cubs were the Cotton Club by Duke Ellington residency located on the second floor of a long, modern apartment building in New York City where he wrote many pieces of music and performed a lot of shows. Ellington and his orchestra gained national attention and praise through weekly radio broadcast that were sometime recorded and released on albums. Another music hall that was popular for jazz music during this period was the Carnegie Hall. This was home to hundreds of jazz concerts by famous artists.