Guillermo Klein played a mind-blowing show at the Library of Congress in February—-and, as it turns out, much of his set was comprised of small-band versions of the tunes his big band, Los Guachos, plays on the new disc Filtros (Sunnyside).

“I’m not a jazz composter,” Klein recently told jazz journalist David R. Adler. “The term ‘jazz composition’ is vague.” Indeed, it only covers one aspect of Klein’s music, but a more accurate descriptor is elusive: on Filtros Klein also toys with classical music (“Louange a l’eternite de Jesus”), Andean folk (“Vaca”), torch songs (“Amor Profundo”) and some art-rock (“Volante”). But he also invents his own forms and rhythms, and trying to distinguish the structural patterns in either will accomplish little more than getting you lost—I challenge anyone to listen to “Luz de Liz” and keep up. Nonetheless, it’s one of the best albums I’ve heard this year.

Buy Filtros. As soon as possible. March right up to Melody Records and place a special order (they don’t have it in stock), wait for it to arrive, then take it home confident that both time and money were worth it.