important jazz concert appearances at the town hall include the june 22 , 1945 concert featuring dizzy gillespie , on trumpet ; charlie parker , on alto saxophone ; don byas , on tenor saxophone ; al haig , on piano ; curley russell , on bass , and max roach , on drums ( with '' big '' sid catlett substituting for roach on a few titles ) which provided the public with its first mainstream exposure to the quickly evolving style of jazz that came to be popularly known as bebop .