Only two more blogs to go! Whew...
This Sonata-Rondo form crap is confusing
The A section begins quietly, with a half cadence after 4 measures , and a PAC at bar 8 marking the first period. A parallel period follows, to conclude the A section on a strong PAC. A short transition section follows, leading us to the dominant key by measure 21. This the Primary section.
The Alternating Section, or the B section, lasts from about measure 21, all the way to measure 41, 20 bars later. Significantly more chromatic that the previous section, we see fewer obvious cadences and phrases. I hear an IAC at measure 23, but don't hear a definate cadence till measure 36, where there is a strong PAC. The sixteenth notes and light left hand accompaniment push the harmonic motion along, preventing harmonic rests and cadences. This is definately not periodic. I would call this sectional. After the cadence in measure 36, we have a short 4 bar transition section back to the dominant key and the Primary A section
Yay, the A section. It is an exact repeat of the A section, leading us to the developmental C section.
The C section is long, lasting from measure 64 to measure 112. We have modulated to the relative minor of the dominant key, d minor. This section opens loudly to a phrase ending 8 bars later on a picardy third PAC. I'm tired...Mozart plays with sequencing up dotted sixteenths, flirting with the tonic in bar 87. Blah. This section is very chromatic development section, that basically leads us to the A section and B flat major.
Another exact repeat of the A section.
This next section is different enough to be labeled D. It is similar to the b section as it uses many running sixteenths, but is longer and quotes other sections. Notice the triplet sections, and the dotted rhymic patterns. Mozart flirts with a return of the A section at 173, but it is a false return. A transitional section from 189 to 199 leads us back th the A section.
Yay, the end. The A section. It is very terminative. The end....help...blah...need sleep...asdflkjasdf.