It is typical of Schumann's musical thinking to construct this complex network of references outside his music-to quote Beethoven, and then to have B… - Charles Rosen

If getting used to music is the essential condition for understanding, it is hard to see just what purpose is served by writing about it. A few experiences of listening to a symphony or nocturne are worth more than any essay or analysis. The work of art itself teaches us how to understand it, and makes the critic not merely parasitical but strictly superfluous.

Here, in the last pages of the "Abegg" Variations, Schumann plays the motto theme A-B-E-G-G (B in German notation is the English Bb) not by sounding the last four notes but by taking them away, one by one, from, the chord of Bb-E-G. This is the first time in history that a melody is signified not by the attack but by the release of a series of notes. The motto, however, ends with a repeated final G. If the motto is played by releasing each successive note, we are faced with a paradox: when the G is released once on the piano, it is no longer there to be released again-the motto is not only unplayable as conceived but unimaginable. Schumann signifies as much by another paradox: he adds accents to the sustained notes.

Schumann's humor is rarely either witty or light: the unrealizable musical structure, the musical motto hidden and partly inaudible, must have stirred his musical fantasy.