The legendary Kolisch Quartet had the singular distinction of playing its entire repertoire from memory, including the impossibly complex modern works of Schoenberg, Webern, Bartok, and Berg. Eugene Lehner was the violist for the quartet in the 1930’s. Lehner’s stories about their remarkable performances often included a hair-raising moment when one player or another had a memory slip. Although he relished the rapport that developed between them without the encumbrance of a music stand, he admits there was hardly a concert in which some mistake did not mar the performance. The alertness, presence, and attention required of the players in every performance is hard to fathom, but in one concert an event occurred that surpassed their ordinary brinkmanship.