semicord

D5 D power chord

Notes
D A
Formula
1 5
Semitones
0 7 above the root
Other symbols
D(no3)

D to A is a perfect fifth (7 semitones). Only two notes, the root and the fifth A, seven semitones apart. With no third it is neither major nor minor. On guitar the root is usually doubled an octave up, as in the shapes below. Turned upside down, A below D is a perfect fourth and the chord finder names it A + D.

D5 on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C#4Eb4F#4Ab4Bb4C#5Eb5F#5Ab5Bb5C4DAC5

Root position from D4: D4, A4. Middle C is C4.

D5 on the guitar

Standard tuning (E A D G B E). Strings run low E on the left to high e on the right, frets downwards; × is a muted string, ○ an open string, and each dot shows the note it sounds, with the root in blue-green. Every shape below has D as its lowest note.

××DAADD×
Open position
x x 0 2 3 x (low E to high e)
Sounds D3 A3 D4
5fr×DDAADD××
A-shape, root on the A string at fret 5
x 5 7 7 x x (low E to high e)
Sounds D3 A3 D4
10frDDAADD×××
E-shape, root on the E string at fret 10
10 12 12 x x x (low E to high e)
Sounds D3 A3 D4

The E-shape and A-shape grips are movable: an E-shape chord's root is the note under your first finger on the low E string, an A-shape chord's root is the note on the A string. Slide the same grip up or down to play power chords on other roots.

Inversions of D5

An inversion puts a note other than the root in the bass. The name is what semicord's chord finder calls those notes played bottom to top; a slash name like C/E means a C chord with E in the bass.

PositionNotes, bass firstNamedListen
Root positionD AD5
1st inversionA DA + D (also read as D5/A)

Where D5 fits

A power chord has no third, so it belongs to any key where its root and fifth do and can stand for either D or Dm. That ambiguity, and the fact that a bare fifth stays clear under heavy distortion where a third would turn muddy, is why rock and metal riffs are built from power chords.