Table of Contents
Section 6: Bibliography
neapolitan sixth chords
1. The Neapolitan chord is a major triad built on the flat ii scale degree of the prevailing key. This means that in G major, the Neapolitan chord is an A flat major triad.
2. Conventionally, the triad is in the first inversion, hence the 'sixth.' Therefore, in G major, the bass note of the A flat major triad usually is C.
3. The function of the N6 is similar to that of the ii chord in that it proceeds to V (sometimes directly, often passing through other chords first). The use of the flat ii intensifies the harmonic progression: flat ii is a tritone away from V. Therefore, the function of the N6 is to intensify the motion to the dominant.
4. The standard Roman numeral character for the Neapolitan chord is N. If the chord is in first inversion, then N6.
For more specific treatment of the linear nature and the history and usage, please see the instructional paper.
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