Discussion 10b - Part-writing Errors

Class discussion

See 10a for the rules.

See 10b for part writing error checklist/document.

Primary Errors

• Parallel perfect octaves or perfect fifths. PP8 or PP5
• Similar octaves or fifths (“direct” “hidden” or “exposed”). This has to do with similar motion.
• Unacceptable unequal fifths. UU5
• Contrary perfect octaves or perfect fifths. CP8 or CP5 a subset of PP8

These errors must be within the same two voices across both chords.