The argument started at the Jazz Lounge. Coleman and Thelonious were discussing the greatest jazz performers of all time and couldn't come to a compromise. Coleman was going with Duke Ellington and Thelonious pegged Louis Armstrong. After a while, things got really heated and that's when the clarinet and saxophone got into the mix. Two busted lips and a night in jail didn't change either Coleman's nor Thelonious's opinions.