I can't really improve on the All Music description:
Hazmat Modine tap into the deepest veins of raw, unpolluted prewar blues and ancient jazz, then whip them up in a blender, tossing in strains of Caribbean calypso and ska, Eastern European klezmer and Balkan brass, Middle Eastern mystery, and more than a few unidentifiable elements that just somehow fit. The result is music that sounds at once ageless and primeval, authentically indigenous and inexplicably otherworldly, familiar and unlike anything else.
The album Bahamut turned up on a few best of lists last year so I took a flyer and got it off eMusic. Been listening constantly all week. I like that despite all these disparate elements -- Tuvan throat singing included -- it has such a clean, focused sound built around traditional blues.
For genuine freak out, see the Lost Fox Train, a harp solo from the album. Yikes.