Just this:
Charles Frechette (g), Giacomo Smith (cl), Damien Levasseur (g) at the Gypsy Jazz Festival in Samois sur Seine, 2012
The growly tone is produced by growling in the back of your throat while playing, at least that’s how I do it on trumpet. Great sound! There’s an absolutely wonderful version of Cootie Williams (trumpet) doing this Juan Tizol-penned tune.

Oh, and this:
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