Author Barry Lopez speaks as part of the Drue Heinz Lectures at 7:30 p.m. at Carnegie Music Hall, 4400 Forbes Ave. Best known for his National Book Award winner, "Arctic Dreams," Mr. Lopez has written six nonfiction works and eight fiction books, all examining the relationship between "the physical landscape and human nature." For tickets, which are $15 to $25, visit www.pittsburghlectures.org or call 412-622-8866.

Looking to get out of the (real) cold of Minnesota, the St. Olaf Choir visits Heinz Hall, 600 Penn Ave., Downtown, for a concert at 7:30 p.m. It brings its nearly 100-year-old a cappella choral tradition to bear not just on older composers such as Bach, but also contemporary ones, including several alumni. Tickets are $15-$28; call 412-392-4900 or visit www.pgharts.org.

Ceramist Kurt Weiser, Regent's Professor of Art at Arizona State University, will speak about his work at 5:30 p.m. at the Society for Contemporary Craft, 2100 Smallman St., Strip District. A reception for his mid-career retrospective exhibition, "Eden Revisited: The Ceramic Art of Kurt Weiser," will follow until 8 p.m. ($10 at the door, $5 students and members). Mr. Weiser is known for his technical virtuosity with porcelain forms and his use of China painting techniques in a distinct contemporary style. For information: 412-261-7003 or www.contemporarycraft.org.

"Radiohole: Whatever, Heaven Allows" will be performed at the New Hazlett Theater, 6 Allegheny Square, North Side, at 8 p.m. "Radiohole cultivates an eccentric acting style and makes familiar texts creepily bizarre," according The Village Voice. Known for its radical and reckless theatricality, avant-garde Radiohole's newest work is a star-spangled American meta-melodrama inspired by film director Douglas Sirk's 1950s potboilers and Milton's epic "Paradise Lost." The heroine is an all-American "Eve" who must save her home from an evil-doer while struggling to find fulfillment in a lasting relationship with a supposedly good man who looks like god.

Radiohole is a Brooklyn-based ensemble founded in 1998 featuring Erin Douglass, Eric Dyer, Maggie Hoffman and Scott Halvorsen Gillette. For tickets, which are $20 and $10 for students and Carnegie Museums of Pittsburgh members, call 412-237-8300 or visit www.ticketweb.com.

New Horizon Theater presents The Jazz Revue featuring Levi Barcourt at the Kelly-Strayhorn Theater, 5941 Penn Ave., East Liberty, at 7:30 p.m. The Jazz Revue showcases live music from legendary recording artists including Miles Davis, Dizzy Gillespie, Ella Fitzgerald, Thelonious Monk, John Coltrane and Charlie Parker. Short stories, text, and spoken word complement the ensemble led by Mr. Barcourt on piano. For tickets, which are $20 general admission and $15 for seniors and students, visit Dorsey's Record Shop, 7614 Frankstown Ave., e-mail newhorizontheater@yahoo.com or call 412-431-0773.

Three of the biggest names in the pipe organ repertoire -- Bach, Franck and Liszt -- will be represented when Philip Brisson, organist at the Catholic Cathedral of the Assumption in Louisville, gives a guest recital at 4 p.m. at Shadyside Presbyterian Church, 5121 Westminster Place. Tickets to this concert on the church's Music in a Great Space series are $5-$10; call 412-682-4300, or visit www.shadysidepres.org.

Critics Andrew Druckenbrod and Scott Mervis talk about music on "The Beat," available exclusively at PG+, a members-only web site of the Pittsburgh Post-Gazette. Our introduction to PG+ gives you all the details.