The Seattle Repertory Jazz Orchestra pays tribute to the great trumpeter, flugelhorn player, composer and band leader Thad Jones (1923-86) with a pair of concerts this week. Part of the Detroit jazz family that also gave us pianist Hank and drummer Elvin Jones, Thad’s ’70s group with drummer Mel Lewis helped define what modern big-band jazz could be. The SRJO show offers, among other works, Jones’ tribute to Louis Armstrong, “The Farewell”; Jones’ most-often-played tune, “A Child Is Born” (featuring Jay Thomas on flugelhorn); and Count Basie’s “April in Paris,” which Thad played with Basie. 7:30 p.m. Saturday at Illsley Ball Nordstrom Recital Hall at Benaroya Hall, 200 University St., Seattle, limited tickets available (206-215-4747, 206-523-6159 or www.srjo.org); and 3 p.m. Sunday at the Kirkland Performance Center, 350 Kirkland Ave., Kirkland; $15-$41 (425-828-0422 or www.kpcenter.org).

Paul de Barros, Seattle Times jazz critic