Here's some footage of Denis Chang demonstrating the "Dutch Style" of improv at Django in June 2007. I think the footage shows how quickly Denis' can get his lessons across to students.
Denis is planning on producing a 4 volume DVD set of Jazz Manouche Improv this fall. It will incorporate many of the different styles or schools of Jazz Manouche Improv. ie Dutch (a la Stochelo Rosenberg), German (Hans che Weiss) French (Django).
Denis wants this to be both comprehensive and definitive on the topics covered.
Judging from this short clip I think we have a lot to look forward to.
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