Skill audit report

mc-counterpoint Audit report.

Counterpoint and voice writing (对位与声部写作) - writing a second line that is genuinely independent rather than a harmony part. The four complementarity axes that make two lines combine (rhythmic density, interval colour, contrary/oblique/similar motion, staggered peaks), contrast between unlike versus like characters, the melodic constraints a contrapuntal line must obey, the five species, and invertible counterpoint for varying a repeat. Use when writing a counter-melody or obbligato, when checking voice leading in a multi-part passage (parallel fifths and octaves, hidden fifths, voice crossing and overlap), when two simultaneous lines sound glued together or fight, when a repeated section needs varying without new material, or when an arrangement is harmonically correct but flat. Not for ordinary bass or accompaniment writing. 对位、复调、副旋律、对旋律、声部独立、声部进行、平行五度、平行八度、隐伏五八度、声部交叉、四声部检查、二重对位、卡农。