parallel motion

Two voices moving the same direction by the same interval.

Two voices moving the same direction by the same interval, locked in step. Lovely as an effect (parallel thirds and sixths are sweet), dangerous with fifths and octaves, where the lines fuse. It is the least independent motion.

Learn it: Motion types

The one-sentence definition at the top is the same one the Theory Aide extension shows as a tooltip inside Ableton Live. Hover any dotted term for its own.