What are the diatonic chords of C# Augmented Heptatonic?

The diatonic chords of C# Augmented Heptatonic are built by harmonizing each degree of the scale in thirds. The scale degrees are 1 ♯2 3 4 5 ♯5 7 and the intervals are 3H-H-H-W-H-3H-H. The triads are: C# major, F# minor seventh, F minor, F# minor, G# augmented, A augmented, C (1-3-♭5).

What is scale harmonization?

Scale harmonization is the process of building chords from each degree of a scale by stacking thirds. Each note of the scale becomes the root of a chord, producing a set of diatonic chords (triads and seventh chords) that naturally belong to that key.

What is Practice Mode in the Scale Harmonizer?

Practice Mode is an interactive study tool that cycles through all diatonic chords with a synchronized fretboard visualization (switch between scale and arpeggio view), adjustable tempo (40–240 BPM), and audio playback. It includes ii-V-I progressions and secondary dominant exercises — the fretboard automatically shows the contextually correct scale for each chord (e.g., Dorian for the ii, Mixolydian for the V7).

C# augmented heptatonic chords

All tres cubano chords for the C# augmented heptatonic scale

Show scale diagram ↓

Chord Voicings

Harmony

Originalii–V–ISec. Dom.

Display

FingerNoteDegree

Fretboard

ScaleArpeggio

C♯ augmented heptatonic scale diatonic chords

IC♯ major

IIF♯ m7

IIIF minor

IVF♯ minor

VA♭ aug

VIA aug

VIIC (1-3-♭5)

C♯ augmented heptatonic scale seventh chords

IC♯ maj7

IIF♯ m7

IIIF mmaj7

IVF♯ mmaj7

VA♭ (1-3-♭6-♭7)

VIA major seventh flat sixth

VIIF♯ m7♭5

C# augmented heptatonic — Tres Cubano scale

Tres Cubano fretboard diagram

Display

C# augmented heptatonic scale — chords and intervals

Diatonic chords: C# major, F# minor seventh, F minor, F# minor, G# augmented, A augmented, C (1-3-♭5).

Intervals: 3H-H-H-W-H-3H-H.

Use the interactive harmonizer above to explore triads, seventh chords, and chord voicings for composing with the C# augmented heptatonic scale on Tres Cubano.