Benny Goodman returned to his swing band because he concluded that was what he knew best. In 1953, he said, "Maybe bop has done more to set music back for years than anything...Basically it's all wrong. It's not even knowing the scales...Bop was mostly publicity and people figuring angles." In 1949 he studied with clarinetist Reginald Kell, requiring a change in technique: "instead of holding the mouthpiece between his front teeth and lower lip, as he had done since he first took a clarinet in hand 30 years earlier, Goodman learned to adjust his embouchure to the use of both lips and
Benny Goodman at the Savoy", and "Goody, Goody". Goodman also played three concerts produced by Chicago socialite and jazz aficionado Helen Oakley. These "Rhythm Club" concerts at the Congress Hotel included sets in which Goodman and Krupa sat in with Fletcher Henderson's band, perhaps the first racially integrated big band appearing before a paying audience in the United States. Goodman and Krupa played in a trio with Teddy Wilson on piano. Both combinations were well received, and Wilson remained. In his 1935–1936 radio broadcasts from Chicago, Goodman was introduced as the "Rajah of Rhythm." Slingerland Drum Company had been calling Krupa the