This year for Christmas, I'm promoting the idea of buying New Orleans music for Christmas presents. I can't think of a better way of using the market to help out the musicians from that great city. And let's just make one thing clear -- there is no point to rebuilding New Orleans without its musicians.
New Orleans is (was) one of the few cities in which being a musician isn't considered self-indulgent, but in which musicians are seen as the cornerstones of the community. It is (was) also one of the few cities in which the lines between 'black music' and 'white music' are pretty much ignored.
New Orleans is the home of American music - jazz, ragtime, swing, dixieland, blues, rhythm & blues, rock and roll and more hail from there. But today, New Orleans musicians are dispersed across the country, as the rooms in which they made their livings and honed their chops remain closed.
I've put a couple of suggestions below. The links to Amazon use my Associate ID and I'll donate any commission I get if anyone buys using them.