CHAPTER
Subordinate Theme
- change in tonality (subordinate key), looser formal expression, new melodic-motivic material
- by inverting the prolonged tonic; by setting the tonic on metrically weak positions; by undermining the prolongation with a dominant pedal
- each subordinate theme must end with a PAC
- because a subordinate theme cannot conclude with a HC, any appearance of this cadence type must be "internal" to the theme
- the first part will end with an internal HC (or dominant arrival); the second part will begin with a new initiating function
- the cadential close of one thematic unit brings at the same time the new accompanimental pattern of the next thematic unit, which itself begins in the following measure
- modal shift, chromaticism, tonicization of more remote regions, modulation
- the transition lacks a concluding function and the subordinate theme lacks an initiating function