Power chords are using the diatonic intervals 1 and 5: the root note (tonic) and the fifth (dominant). Power chords are neither major or minor because it is lacking the 3th (mediant), which gives them a neutral sound that can fit into many musical contexts.

The D powerchord contains the notes D and A.

Power chords are dyads, meaning they consist of only two different notes. They are a key element in rock music. They produce a strong, full sound that's great for creating rhythm and riffs. Power Chords are movable shapes, meaning the same shape can be used to play different chords. They are typically easier to play than full major or minor chords, making them popular among beginners. Power Chords can be played in different positions and tunings across the fretboard. Despite their simplicity, power chords are a versatile tool in creating dynamic and impactful music.

Power Chords on Mandolin

What are the notes in D harmonic minor?

The notes of the D harmonic minor scale are D, E, F, G, A, B♭, C♯ and its formula is1, 2, ♭3, 4, 5, ♭6, 7.