Concept index

Each idea, across the books

46 ideas, each on one page: where every book teaches it, the passages that name it, and the examples you can play.

This index is Playable Books’ own: a first pass that finds the term’s words in each book, corrected by hand. The authors did not tag these passages, and their terms can differ (Fux’s “ligature” is a suspension). The quoted text is the book’s.