I have been reading The Study of counterpoint by Johann joesph Fux and came across certain four rules regarding movement.
1. From one perfect consonance to another perfectone must proceed in contrary and oblique motion.
2. From a perfect to a imperfect consonance one must proceedin any of the three motions.
3. From an imperfect to a perfect consonance one must proceed in contrary and oblique motion.
4. From an imperfect to an imperfect consonance one may proceed inany of the three motions.
3 motions-Direct, Contrary, Oblique. The last i i do not understand. and i am not so far in the book yet, so are there any more rules?
perfect consonances are:unison fifth and octave
imperfect:sixth and thirds
dissonance are the rest.
Is this statement true?
I would appreciate any corrections, additions and comments. Thank you very much.