Is Hevreh Ensemble a world-music group? A chamber-music consort? A jazz group? The correct answer is all of the above: Multi-instrumentalist leader Jeff Adler deftly mixes sounds and styles in a manner that can recall the work of Oregon and the Paul Winter Consort, but with a stately decorum all its own. Here, the group is celebrating a lovely new CD, Between Worlds, recorded with Native American flute luminary Joseph Firecrow.