Power Chords are used extensively in hard rock–where a simple, clean, heroic, and powerful sound is desired…
C Power Chord Theory & Ear Training
A C power chord is produced by combining two notes: C and G, typically in a 1-5-8 voicing…


Notice the very open, tonally ambiguous sound-feeling. Since “the 3” is missing, it begs the question: Is it Major? Minor? Neither? Both?
The answer, of course, is it all depends on context and what the composer or improviser chooses to do with it!
Here’s a hard rock example in the key of E that employs a mix of Blues and Natural Minor Tonalities…

Power Chords, All Spellings
Any interest in a scores and MP3s?
learn more… Pop/Rock Piano Lessons
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