1 Term which denotes the course upwards or downwards of a melody or melodies. In the combination of any 2 ‘voices’ or ‘parts’ of a comp., if they proceed in the same direction (notationally considered), they are said to be in similar motion, if in opposite directions, in contrary motion. If one part holds (or repeats) a note and the other part moves up or down from it, that is oblique motion. Similar Motion in which the parts proceed by the same intervals (numerically considered) is parallel motion.
2 In the shaping of a single part progress of one note to an adjacent note by step is called conjunct motion and progress to some other note by leap disjunct motion.
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