semicord

C5 C power chord

Notes
C G
Formula
1 5
Semitones
0 7 above the root
Other symbols
C(no3)

C to G is a perfect fifth (7 semitones). Only two notes, the root and the fifth G, 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, G below C is a perfect fourth and the chord finder names it G + C.

C5 on the piano

C4D4E4F4G4A4B4C5D5E5F5G5A5B5C#4Eb4F#4Ab4Bb4C#5Eb5F#5Ab5Bb5CC4GC5

Root position from C4: C4, G4. Middle C is C4.

C5 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 C as its lowest note.

×CCGGCC××
A-shape, root on the A string at fret 3
x 3 5 5 x x (low E to high e)
Sounds C3 G3 C4
8frCCGGCC×××
E-shape, root on the E string at fret 8
8 10 10 x x x (low E to high e)
Sounds C3 G3 C4

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 C5

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 positionC GC5
1st inversionG CG + C (also read as C5/G)

Where C5 fits

A power chord has no third, so it belongs to any key where its root and fifth do and can stand for either C or Cm. 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.