Knowra Power chord Power chord A guitar chord built chiefly from a root and fifth, often doubled at the octave. Its lack of a third gives it a strong sound with little major-or-minor ambiguity.
Perfect fifth : An interval spanning seven semitones in equal temperament, formed by a root and its fifth scale degree. The fifth supplies the defining interval beyond the root.
Heavy metal : A rock-music genre characterized by amplified distortion, forceful rhythms, and prominent guitar work. Power chords provide a clear, forceful foundation for many metal riffs.
Major chord : A triad consisting of a root, major third, and perfect fifth. Its major third gives the clear major quality power chords usually avoid.
Link Wray : An American guitarist whose distorted instrumental recordings helped shape early rock guitar. His 1958 recording “Rumble” popularized a menacing, distorted guitar sound built around simple chord shapes.
Octave : An interval between two pitches in which one has twice the frequency of the other. Doubling the root at the octave thickens common power-chord voicings.
Punk rock : A rock genre that emerged in the 1970s, known for short songs, direct performances, and stripped-down arrangements. Their simple movable shapes support punk’s fast, economical guitar parts.
Minor chord : A triad consisting of a root, minor third, and perfect fifth. Its minor third supplies a quality that a standard power chord leaves unspecified.
Rumble (instrumental) : A 1958 instrumental single by Link Wray and His Ray Men, known for its distorted guitar sound. Its blunt guitar sonorities are often cited as an early landmark for power-chord rock.
Harmonic series : The sequence of integer-multiple frequencies produced by an ideal vibrating source. Its partials help explain why root-and-fifth combinations sound consonant and robust.
Grunge : A rock style that emerged in the Pacific Northwest in the late 1980s, combining punk energy with heavy guitar sounds. Grunge guitarists used distorted power chords for dense, dynamic riffs.
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