Composite (musical theme)
A composite is a kind of grammatical theme defined and described in richards-2016. It can be split up into 2 phrases: the antecedent and the departure.
It starts off similarly to a period but does not return to the opening idea. C must not be a variation of A or B , though it usually has motivic ties.
This form type is not commonly used in film music, though there are some prominent examples (below). (richards-2016 par.38)
Examples
If I Were King: Main Theme
There’s a motif in here that links each of the four ideas: step-wise downward motion, though in each idea it’s presented differently.
Under Fire: Main Theme
A and B are similar in their harmony. C is similar to A in its melody but is different in its harmony.
