As part of the worldwide celebration of the 250th anniversary of Beethoven’s birth, two musicians of the Chicago Symphony Orchestra offer a salute. While sheltering at home during the coronavirus crisis, Assistant Principal Clarinet John Bruce Yeh and Assistant Principal Bassoon William Buchman perform the Larghetto sostenuto and Rondo allegretto from the composer’s Duo for Clarinet and Bassoon in C Major, WoO 27.