Cleveland-based duo of fortepianist Mikhail Grazhdanov and soprano Andréa Walker showcases the polarity between polite and untethered expression cultivated in the German salon circa 1800 through poetic declamation and a performance of cantatas by CPE Bach and Johann Friedrich Reichardt, dramatic keyboard music by CPE Bach, and lieder by Louise Reichardt, Mozart, and Haydn. Preceded at 6:45 p.m. by a talk. 7:30 p.m., St. Andrew’s Episcopal Church, 306 N. Division. $35 (seniors, $30; students, $10) in advance at academyofearlymusic.org & (if available) at the door. $5 increase after Oct. 30. (734) 228–4338.