The Neapolitan: harmony's dark second
Build a major chord on the lowered second degree and you get the Neapolitan — bII, the darkest pre-dominant tonal music owns. Beethoven reaches for it at the Moonlight Sonata's crisis (bars 52–54); Für Elise leans on it three times. Our corpus holds 34 of them across 21 pieces, labeled where they happen, playable in context.
Practice with the pieces that use it →
The census
Reducing every piece in our corpus to its harmony and counting the Neapolitans:
| chord | count | the move |
|---|---|---|
| bII7 | 19 | pre-dominant, resolving to V |
| bII | 11 | pre-dominant, resolving to V |
| bII+7 | 3 | pre-dominant, resolving to V |
| bII+ | 1 | pre-dominant, resolving to V |
Most arrive as bII7 in root or first inversion — the classical "Neapolitan sixth" — and almost all resolve where the textbook says: through V, home.
Hear them in real pieces
Each link opens the piece in the harmony player, with every chord labeled — the Neapolitans read as bII or bII7 above the staff.
- Prelude 18 in G-sharp minor (BWV 887) J. S. Bach 3 Neapolitans
- Prelude in C minor, Op. 28 No. 20 F. Chopin 3 Neapolitans
- Für Elise L. v. Beethoven 3 Neapolitans
- Prelude 6 in D minor (BWV 851) J. S. Bach 2 Neapolitans
- Prelude 8 in E-flat minor (BWV 853) J. S. Bach 2 Neapolitans
- Prelude 16 in G minor (BWV 861) J. S. Bach 2 Neapolitans
- Prelude 4 in C-sharp minor (BWV 873) J. S. Bach 2 Neapolitans
- Prelude 12 in F minor (BWV 881) J. S. Bach 2 Neapolitans
- Prelude 20 in A minor (BWV 889) J. S. Bach 2 Neapolitans
- Moonlight Sonata, 1st Movement L. v. Beethoven 2 Neapolitans
- Prelude 4 in C-sharp minor (BWV 849) J. S. Bach 1 Neapolitans
- Prelude 20 in A minor (BWV 865) J. S. Bach 1 Neapolitans
Go deeper
- Hear bII against ii → The Neapolitan's dark-second color against the plain subdominant, drilled by ear.
- The theory: Neapolitan sixth chords → Where it comes from, how it's spelled, and why it lands on V.
- Learn the Moonlight → The most famous Neapolitans in the repertoire, section by section.