The trombone is a tough instrument to put in a leading role, and the small ensembles that feature a trombone are hence limited, but thanks to the relentless creativity of modern music, anything is possible, in any combination, with any kind of intent. Here is a list of interesting new albums in random order.
Daniel Blacksberg Trio - Bit Heads (NoBusiness, 2009)
David Taylor - Red Sea (Tzadik, 2009)
Taylor himself plays tenor trombone, and a wide variety of regular or custom-made trombones. Franz Hackl plas trumpets, Adam Holzman surdo, bass drum, piano; Scott Robinson a wild variety of reeds, such as contrabass clarinet, tenor rothopone and many more, and Warren Smith has this gigantic list of rhythm instruments to have fun with : giant Chinese barrel drum, bass marimba, and many more. From the list and the label, you already get the gist that this music is to be played in the lower registers, full of klezmer scales in the best Radical Jewish Series tradition, and indeed, you are right. The album is inspired by "the music of the legendary Cantor Pierre Pinchik, ... evoking the ecstasy of cantorial fervor".
If the music did not open such interesting new musical visions at moments, I would not even mention it. Taylor creates great, reverent and intense soundscapes at times, with the solemnity and Weltschmerz you may expect, although often too pompous and heavy-footed. He throws in every style he has ever played in, from the New York Philharmonic over Blood, Sweat & Tears to the Muppetts, and luckily some creative modern music moments. Great instrumental skills do not necessarily make great composers.
Superimpose - Talk Talk (Leo Records, 2009)
Noah Rosen, Yves Robert, Didier Levallet - Silhouette (Sans Bruit, 2009)
Château Vilain XIIII (sic!) in Belgium. The three musicians explore, respond, push forward, change courses, open new vistas, and often all within one piece, changing from powerful intensity to slow and prudent testing of new common grounds. Rosen's piano sets the tone, the rhythm and the music's overall fluidity, adding complexities to abstractions, and it is without a doubt the most lyrical album of the list, yet also one of the richest, most mature and most playful. A real trio achievement.