Somewhere (in this blog I think), there's a recollection from a male Davenporter, Bix friend, listening to records with him one afternoon when Bix visiting home mid 1920s. If I remember the recollection right, it was a Victor dance band record playing, mid-latter 1920s electric, but not a bandleader name from the present Bix discography. This friend recalled the record prompting laughter from Bix. "I'm on it!" Bix told him. Lotsa stories of his freelancing, and mostly all speculative, as of now. But if the story is true, then there is unfound material.