Bix: Leon Bismarck Beiderbecke

Wikipedia

With Louis Armstrong, Beiderbecke was one of the most influential jazz soloists of the 1920s. His turns on "Singin' the Blues" (1927) and "I'm Coming, Virginia" (1927), in particular, demonstrated an unusual purity of tone and a gift for improvisation. With these two recordings, especially, he helped to invent the jazz ballad style and hinted at what, in the 1950s, would become cool jazz.