Stetson, a native of Ann Arbor who now lives in Montreal, is well-known as a versatile contributor to bands such as the Arcade Fire and Bon Iver, but his greatest achievement is his wildly creative solo practice, where he directs his encyclopedic virtuosity—particularly a prodigious command of circular breathing—in the service of pop-rooted original compositions. He's developed a system using multiple microphones in and around his horn (as well as directly on his neck) to generate a composite of richly textured sound without using any looping. Every sound he makes is created live. Gustafsson, a Swede who now lives in Austria, is by contrast a bare-knuckled improviser who's transformed solo free improvisation into an act of performance art. His facial contortions and vein-bulging intensity are almost as exciting as the visceral sounds he unleashes in baritone and tenor saxophones. Whereas Stetson meticulously charts out his solo work, Gustafsson works without a plan, which may have made their debut duo easier for him to navigate.

I usually appear on WBEZ's Radio M program for a 30-minute segment on the third Friday of each month, playing some my favorite new international music. I'll be doing that again tonight, but I'm sticking around for the whole show to join host Tony Sarabia in discussing and listening to our favorite international music from 2012. The show airs from 9 to 11 PM.