D Major Triad

Chord Tones: D Major Triad

Symbol: M, maj, (none) — Formula: 1-3-5

Chord Notation

Roman numeral (e.g. I, IV, V) and Nashville Number notation are key-dependent. See Keys pages for chord function within specific keys.

Inversions

Harmonic Function

The D major chord commonly functions as the supertonic (ii) in C major or dominant (V) in G major. Its harmonic role varies by key — in major keys it provides stable harmonic grounding.

The major triad is the most fundamental chord in Western music, built from the root, major third, and perfect fifth. It has a bright, stable, and resolved sound. The D Major Triad specifically contains 3 notes: D, F♯, A (formula: 1-3-5). On guitar, D-rooted chords use the open D string as their bass note, and the compact open-D shape is one of the most recognizable chord voicings. Rock anthems and folk songs frequently center on D chords, which provide a bright, cutting tone that projects well in ensemble settings.

Common Progressions

The D Major Triad frequently appears in these progression patterns (shown in Roman numeral notation relative to key):

• I-IV-V-I
• I-V-vi-IV

Songs Featuring the Major Triad

Well-known songs where the D Major Triad — or this chord type — plays a prominent role:

• Let It Be – Beatles
• Don't Stop Believin' – Journey
• Imagine – John Lennon

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

Scales Containing the D Major Triad

These scales include the D Major Triad as a diatonic or characteristic chord: