How to form diatonic chords of C sharp major scale?
C Sharp Major Scale
C♯ – D♯ – E♯ – F♯ – G♯ – A♯ – B♯ – C♯ are the notes of the C sharp major scale.
Diatonic chords are formed by stacking two generic third notes above each scale note.
C Sharp Major Diatonic Chords
These are the seven major scale diatonic chords that come from the C sharp major scale.
Each major scale diatonic chord is labelled with a roman numeral number, and follows the same pattern:
I, ii, iii, IV, V, vi, viiº
We use uppercase roman numeral numbers to represent major chords, lowercase to represent minor chords, uppercase with a small plus sign to represent augmented chords, and lowercase with a small circle to represent diminished chords.
First, fourth and fifth chords of a major scale will always be major chords. Second, third and sixth chords of a major scale will always be minor chords. Seventh chord of a major scale will always be diminished chords.
The seven diatonic chords formed from the key of C sharp major are:
I. C♯ – E♯ – G♯ (C Sharp major chord)
ii. D♯ – F♯ – A♯ (D Sharp minor chord)
iii. E♯ – G♯ – B♯ (E♯ minor chord) *Notice that E♯ and F are enharmonic equivalents. F minor chord is used more commonly than E♯ minor chord.
IV. F♯ – A♯ – C♯ (F Sharp major chord)
V. G♯ – B♯ – D♯ (G♯ major chord) *Notice that G♯ and A♭ are enharmonic equivalents, and A Flat major chord is used more commonly than G♯ major chord.
vi. A♯ – C♯ – E♯ (A Sharp minor chord)
viiº. B♯ – D♯ – F♯ (B♯ diminished chord) *Notice that B♯ and C are enharmonic equivalents. C diminished chord is used more commonly than B♯ diminished chord.
These are the chords that are diatonic to the C sharp major scale. They are directly related to the C sharp major key and make a harmonic sound for music in the same key.