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Counterpoint has to satisfy a double goal, and every difficulty lives there:
Make each line sound like a melody on its own, while making them together sound like harmony.
The two goals pull against each other: attend only to vertical agreement and the lines become a series of collisions; attend only to horizontal flow and the result is dissonant, losing harmonic logic. Counterpoint is the technique for handling that pull.
One test decides it
Sing any single voice on its own: does it sound like a melody?
Yes → the counterpoint holds. No (it has become "chord fragments") → it is homophonic texture, not counterpoint. The test is blunt and practical: no analytical tools needed, just sing it.
Its relation to harmonic writing
| Harmonic (homophonic) writing | Counterpoint (polyphonic) | |
|---|---|---|
| Starting point | chords | lines |
| Voices | one principal voice plus accompaniment | every line independent |
| Test | do the chords connect well? | does each line work alone as a melody? |
| Relation | — | counterpoint is the lines; harmony is where they meet |
The key realisation: harmony is not laid out first and then filled by melody. In contrapuntal thinking, harmony is the vertical result of several lines arriving together — the other face of what voice leading describes.
Five species: a training ladder
The classic method adds complexity one step at a time so the student handles a single new variable per stage:
| Species | Method | New difficulty |
|---|---|---|
| note against note | one note per note against the cantus firmus | vertical relations only |
| second | two notes per note | weak beats and passing notes |
| third | four notes per note | more complex rhythmic figures |
| fourth | suspensions displace the accents | holding and resolving |
| fifth | a free mixture of all the above | no preset; close to real writing |
Note the design: it breaks "handling several things at once" into "add one thing at a time" — a general principle in training any complex skill. Rules are covered under first species.
Diagram: two views of the same instant
Listen: the vertical relation, and the lines you must hear elsewhere
Counterpoint needs two voices, and this site's listening components are single-voice or chord-based — so a true two-part example cannot be played here. I use interval to demonstrate the vertical face (the interval the two lines form at one instant); for the horizontal lines, go to the instances above — Bach's two-part inventions are the shortest route.
Common misconceptions
- "Counterpoint just means several melodies at once." The point is that each must be a melody. Lines that
- "Counterpoint and harmony are two separate subjects." Two views of one thing: harmony is the vertical
- "Homophonic music is inferior to counterpoint." They are two textures with different jobs. Homophony is
- "Species counterpoint is obsolete dogma." It trains the ability to handle horizontal and vertical
make way for one another and complete one another qualify; simultaneous noodling does not.
result, counterpoint the horizontal process.
better for narration and mood; polyphony for development and weaving.
simultaneously — an ability jazz arranging and film orchestration need just as much. :::
Listen in the library
All tracks from midicn-lib — inline badge is the license tier (C1 commercial / C2 non-commercial / C3 study only).
Sources
- 对位指两个或以上独立旋律线同时结合，属对位学与复调音乐通则
- 五类对位作为由简到繁的训练阶梯（一音对一音 → 华丽对位），为通行对位教学体系
Used for fact-checking only; all prose is original.