Michael Marissen called a rococo trio sonata on this theme for traverso, violin, and continuo “anti-galant.” Muted trombone begins and poco rubato horn and trumpet complete this theme via Klangfarbenmelodie in a chamber orchestra arrangement by Webern, (15[1])who called (15[1])it “unapproachable.” (15[2])A very (15[1])early piano piece on this theme that Schoenberg and Charles Rosen called a “miracle” was composed after a 1747 visit to Potsdam to try new fortepianos. This subject (*) chromatically descends from G to low G after a rising C minor triad (10[1])and leap from A-flat to low B. A canon perpetuus on this theme notated with extra clefs (-5[1])is one of ten unsolved riddles gifted to an amateur flutist (10[1])with a title page whose acrostic puns (10[1])on a Latin word for “seek.” A Prussian king challenged a composer (10[1])to improvise a six-voice ricercar (“richer-car”) on this theme, which underlies a palindromic crab canon. For 10 points, what theme by Frederick the Great (10[2])inspired the contrapuntal (10[1])BWV 1079 and Gödel, Escher, Bach? ■END■ (10[1]0[3])