Tonnetz P/L/R explained with examples
The Tonnetz (tone network) models triads as neighbors that share tones. Each move changes only one note, making it a fast way to find smooth next chords.
The three moves
P – Parallel
Switches a major triad to its parallel minor (or vice versa) by lowering/raising the third. C → Cm, E → Em.
R – Relative
Moves between relative major/minor triads that share two notes. C → Am, Am → C.
L – Leading‑tone exchange
Moves to a triad that shares two tones while the remaining tone shifts by step. C → Em, Am → F.
Examples you can hear
C major Tonnetz neighbors
P: C → Cm · R: C → Am · L: C → Em
Minor to major via R then P
Am → C (R) → Cm (P). This creates a subtle dark turn while staying connected by shared tones.
Tonal drift through the Tonnetz
Repeated P/L/R moves can wander far from the original key while still sounding coherent.
Tip: after you select the first chord, Tonnetz move suggestions appear in the app.
When to use Tonnetz moves
- Finding the next chord quickly with smooth voice leading.
- Creating cinematic or neo‑Riemannian progressions beyond strict diatonic rules.
- Modulating by stepping through shared‑tone neighbors.
Combine Tonnetz moves with diatonic functions (ii‑V‑I) for the best of both worlds.