My analysis of the form of the movement is, currently, that it is a large ternary with written out repeats of the main theme and the subordinate theme complex + return of the main theme together, something like a 'rounded large binary'. A summary of the analysis is below:
- Main theme: cc. 1-17
- Main theme (repeated): cc. 17-33
- Subordinate theme complex: cc. 33-45
- Main theme (returned): c. 45-52
- Subordinate theme complex + main theme returned (repeated): cc. 53-72
- Coda: cc. 73-79
The problem is that the second section of a large ternary is normally an interior theme or at best, a "subordinate theme complex within the framework of the minore" (Analyzing Classical Form, p. 582), which is not the case since we are in the subordinate key. Also, are repeats "allowed" in large ternaries?
I analyzed the main theme as follows, the line and dashes indicate measures and beats, respectively, and the number below them are measure numbers:
And the subordinate theme complex as:
Standard abbreviations for cadences are used, and the remaining abbreviations translate as:
- BId - basic idea
- CId - cadential idea
- Cnt - continuation
- Cad - cadential idea
- N.C. - No cadence
Were it not for the repetitions, the case here might be of a sonata without development with a truncated recapitulation, I think.
As I'm not all that used to analyzing slow movements I may be missing something basic here, I apologize if that is the case.