Which dance rhythm serves as an ostinato in Crumb's "¿De dónde vienes?"

The debate between the realists and nominalists

A. was settled by a church council in 1215. B. centered on the issue of universals. C. arose from attempts to reconcile Arabic thought and Christian beliefs. D. was fought between the papacy and scholarly monks.

The organum passages in this composition are?

a) free or "unmeasured" b) measured or "discant" c) a mixture of free ("unmeasured") and measured ("discant") d) note against note