The arrangement of movements in the Grand Sonata in B flat follows traditional classical lines, as is true of almost all the Schubert sonatas. A complete structural analysis of the work reveals some modifications in the architecture of individual movements; this is especially evident in the first movement. The departures from usual treatment of first movement sonata form may be classified as follows: 1. Developmental procedures begin in the exposition. 2. The second subject begins in a distantly related key. 3. The development section stresses melodic treatment rather than contrapuntal technique. The second movement is in ternary form and exhibits little irregularity in structure. The movement is an excellent example of the employment of an accompaniment figure as a unifying element.

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