Topmusicanswers
The canonical answer is: A hidden octave or hidden fifth is forbidden only if the octave or (perfect) fifth is formed by the Soprano and another voice, and that the Soprano is jumping (i.e. adjacent notes do not form a second, but is a third or further away).
- What is a hidden fifth or octave?
- Can you double the 5th in voice leading?
- Whats a hidden octave?
- How do you avoid parallel fifths and octaves?
What is a hidden fifth or octave?
Hidden fifths (hidden octaves are the same idea, but with octaves) is when two voices move in similar motion into a fifth in the next chord. This isn't the same as parallel fifths, where they move together from one fifth to another.
Can you double the 5th in voice leading?
**Rule: you may only leave out the fifth **Guideline: Double the root of the chord (except for diminished…) Double the fifth if it makes the voice leading smoother. Be careful with the third.
Whats a hidden octave?
: an unsounded musical interval of an octave that is implied by the similar up or down motion of two voice parts and that if sounded would produce consecutive octaves.
How do you avoid parallel fifths and octaves?
Avoid parallel fifths and octaves between notes following adjacent accents, if voices are 2:1 (second species). Allow if each of the notes forming the parallel is approached from a different direction. Allow if each of the perfect intervals is "unessential" (not part of the prevailing harmony).
