27. “Nb. non si deve far una cadenza qui,” Beethoven wrote in the autograph, evidently only after a text had been prepared for publication. For an informative note on the two versions of this inscription, see Beethoven Werke, Abt. III, Band 3: Klavierkonzerte II, ed. Hans-Werner Küthen, Kritischer Bericht (Munich: G. Henle Verlag, 1996): 50. “Non si fa una cadenza” is the title of a thoughtful essay by Ludwig Misch, Beethoven Studies, 171–178. “Thus Beethoven’s written cadenzas represent a step forward along the road leading imperceptibly to the abolishment of the cadenza” (176). The idea is explored in greater depth in Paul Mies, Die Krise der Konzertkadenz bei Beethoven (Bonn: Bouvier, 1970), which includes a routine synopsis of events in the cadenzas for K 466.