Vibraphonist, drummer, and composer. He is an integral member of Chicago’s jazz and improvised music scene, bringing his aggressive yet lyrical style to over 10 working Chicago groups, including Rob Mazurek’s Starlicker and Exploding Star Orchestra, Mike Reed’s Loose Assembly, Peter Brotzmann:Jason Adasiewicz Duo, Nicole Mitchell’s Ice Crystals, Josh Berman and His Gang, Ingebrigt Häker Flaten Chicago Sextet, James Falzone’s Klang and Ken Vandermark’s Topology and Midwest School. Adasiewicz performs frequently in Europe and is a member of groups lead by Peter Brotzmann, Mats Gustafsson, and Stefano Bollani. Adasiewicz won the 2011 Downbeat Annual Critic’s Poll in the Rising Star Vibes category, and for the last 5 years has placed in the Vibes category
Sun Rooms features Jason Adasiewicz on vibraphone, Mike Reed on drums, and Nate McBride on bass. Devin Hoff joined the trio in 2013. The Chicago group formed in 2008, first experimenting as a free improvising trio, and later focused attention on arranging tunes that Adasiewicz wrote during his wife’s first pregnancy in the summer of 2009. Delmark Records released the band’s dedut record in 2010, Sun Rooms. The critical attention that Sun Rooms received includes: The New York Times Ben Ratliff's Top 10 Pop and Jazz Records of 2010, The Village Voice Top 50 Jazz Records of 2010, The Chicago Tribune Howard Reich's Top 10 Jazz Records of 2010, The Chicago Reader Peter Margasak's Top Albums of 2010, Dusted Magazine Derek Taylor's Top Jazz Records of 2010. Spacer is Sun Rooms second record, and was released in 2011 on Delmark. Spacer was written in the winter of 2011 and slowly shaped through a month long residency at a north side Chicago bar, The Whistler. Spacer was chosen by the Chicago Tribune as a Top 10 Jazz Record of 2011. In 2012 Sun Rooms was invited to perform at the Doek Festival in Amsterdam, The Hyde Park Jazz Festival in Chicago, and the Made in Chicago Festival in Poland.