#professional miscue

[musicschema]

                       Schubert's Impromptu Op. 90, No. 4 (A Flat Major)

The Ambiguous Passages: Note how Schubert modifies the phrasing of the six-chord groups in the three following passages -- and in the clip below, how Rachmaninoff, Horowitz, and Rubinstein alter that phrasing to follow their own schemas.

[musicschema]

We turn to Schubert’s Impromptu in Ab Major (Op. 90, No. 4) as an example of how the simplest melodic pattern can generate a deeply felt ambiguity, as played by Rubinstein, Rachmaninoff and Horowitz respectively.