Riccardo Muti, music director of the Chicago Symphony Orchestra, and Pulitzer Prize-winning composer George Walker will appear on the weekly radio program “The Arts Section” on WDCB-FM (90.9/90.7) at 8 a.m. Sunday, April 15. They will be interviewed by Newcity Chicago columnist and critic Dennis Polkow.

This week, the CSO and Muti are performing Walker’s Lyric for Strings (1941), one of the most frequently performed orchestral works by a living American composer. Now 95, Walker was the first African-American to win the Pulitzer Prize in Music, in 1996, for his Lilacs for Voice and Orchestra, with text from Walt Whitman’s poem “When Lilacs Last in the Dooryard Bloom’d.”

At Symphony Center, Lyric for Strings leads off an American-themed program of Copland’s Lincoln Portrait with narrator John Malkovich and Dvorak’s Symphony No. 9 (From the New World), with remaining performances at 8 p.m. April 13-14 and 7:30 p.m. April 17.

Hosted by Gary Zidek, “The Arts Section” also is streamed online at wdcb.org.

The CSO’s music director position has been endowed in perpetuity by a gift from the Zell Family Foundation.