The connection between Wolfgang Amadeus Mozart and 19th-century German architect and theater designer Karl Friedrich Schinkel is tenuous--Schinkel came up with a striking set for an 1816 production of The Magic Flute--but it's close enough to provide an excuse for an afternoon of music from Mozart's four key operas followed by a tour through an exhibition of Schinkel's architectural prints and drawings. It takes place this Sunday at the Art Institute as part of a collaborative series between the museum and the Chicago Symphony Orchestra. On the program are woodwind transcriptions of memorable melodies from Cosi fan tutte, The Marriage of Figaro, Don Giovanni, and The Magic Flute. The caliber of performers is particularly noteworthy, with an octet from the CSO (including veterans Grover Schiltz, Norman Schweikert, Daniel Gingrich, William Buchman, and John Bruce Yeh) plus bass player Bradley Opland. Calling itself the Gold Coast Chamber Ensemble, this ad hoc band features Mozartean pairings of oboes, bassoons, clarinets, and horns. A slide lecture on Schinkel's work by the museum's Mary Sue Glosser precedes the concert. Sunday, 2 PM, Fullerton Auditorium, Art Institute of Chicago, Michigan and Adams; 435-6666.