# Counterpoint & Voice Leading, Music theory

Species counterpoint and independent lines in chamber music

Counterpoint is the art of combining independent melodic lines, the foundation of all Western polyphony. This module teaches the five species of strict counterpoint, then applies those principles to Bach's inventions and string chamber music.

Advanced · 6 lessons · approximately 118 minutes of material (not a mastery deadline).

## Before this module
- [Borrowed Chords & Modal Mixture](/learn/theory/modal-mixture), The Neapolitan, augmented sixths, and parallel key borrowing

## What this module covers
1. **First and Second Species Counterpoint**, Note-against-note and two notes against one (16 min)
2. **Third, Fourth, and Fifth Species**, Syncopation, florid counterpoint, and free counterpoint (16 min)
3. **Bach Two-Voice Inventions**, How Bach combined two independent melodic lines (14 min)
4. **Parallel Fifths, Octaves, and Voice-Leading Rules**, What to avoid and why, the rules that make lines independent (24 min)
5. **Independent Lines in String Chamber Music**, How individual parts create a polyphonic texture in quartets (24 min)
6. **Counterpoint in Practice**, Write a two-voice passage and analyze a quartet excerpt (24 min)

## What comes next
- [Musical Form & Structure](/learn/theory/musical-form), Binary, ternary, sonata, rondo, and concerto form

## Where should I start with counterpoint & voice leading?
The curriculum places Borrowed Chords & Modal Mixture before this module. Review those topics if they are unfamiliar. The first lesson is “First and Second Species Counterpoint”: Note-against-note and two notes against one. The order is a study guide, not proof that every learner needs the same pace.

## How long is the counterpoint & voice leading module?
The 6 listed lessons total approximately 118 minutes of material. That estimate describes lesson content, not the practice time needed to become comfortable with species counterpoint and independent lines in chamber music. Revisit one task at a time and use feedback from a teacher where physical technique is involved.

## What can I try here without an account?
The counterpoint & voice leading description, lesson sequence and prerequisite links are public. There is no full worked lesson sample for this module yet. The linked public tools and references are free. A free account includes the complete five-lesson foundation module in each instrument and five lessons in music theory, with saved progress and no expiry. Later lessons require the relevant paid package.

## Continue in Arco
The complete five-lesson foundation module in each instrument and five music theory lessons are free with an account, including saved progress and no time limit. Later lessons require the relevant paid package. Public samples do not assess your physical technique or certify exam readiness.

[See packages and pricing](/pricing) · [Back to the music theory curriculum](/learn/theory)

Canonical source: https://arcosounds.com/learn/theory/counterpoint