- Similar Motion – when two or more parts move simultaneously upwards or downwards. Parallel Motion is when the parts move by the same interval and same direction.
- Contrary Motion – when one part moves up while the other moves down.
- Oblique Motion – when one part is immobile while the other moves. Its most favorable for the purity of realization as no bad effect can result from it.
Old Music Theory
Theory of the Great Composers
Old Music Theory 