ABSTRACT
Two kinds of figure are used below to illustrate a range of upper-voice structures. The first is a schematic diagram that represents the relative dimensions and alignment of upper-voice blocks and tenor taleae. Tenor statements in original note values (integer valor) are indicated in these diagrams by straight lines (———), diminution and similar procedures by wavy lines (﹏﹏), and the boundaries of taleae and blocks by vertical strokes(|). Thin horizontal lines separate these sections where they are vertically stacked in the diagrams, as a reminder that upper-voice rhythmic correspondences occur only within sections and not between them. Measure numbers are included to the right of each diagram to allow comparison with available editions.
