[Dixielandjazz] Dino similarity.

[J. D. Bryce]

Not surprising that Dean sounds like Bing.  Dean Martin got his start in the 
business as a Bing Crosby sound-alike.

Back in the early and mid-1930s Crosby had this quick vibrato, just like 
Dean's.  Crosby was advised to lose the vibrato and by the 1940s. it was all 
but absent from his recordings.  Martin kept his and it became a signature 
sound for him by the 1950s.

Jack Bryce