The Pittsburgh Symphony Orchestra show includes selections from Wagner’s “Der Ring des Nibelungen” under guest maestro Donald Runnicles, general music director of the Deutsch Oper Berlin.

The orchestra also performs “Euphonic Blues,” a blues-inspired piece composed by Carnegie Mellon University professor Nancy Galbraith.

Pianist Stephen Hough, who won the first MacArthur Foundation Fellowship awarded to a classical artist, mixes in Mendelssohn’s “Piano Concerto No. 1.”

The two performance continue the BNY Mellon Grand Classics series.

The first show is at 8 p.m. tonight. There’s also a 2:30 p.m. matinee, on Sunday.

The symphony performs at Heinz Hall, 600 Penn Ave., Downtown. Tickets are $25.75-105.75. Find them here.