Parallel chord

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Parallel chords arise when the same intervallic relationship is maintained in adjacent chords moving in parallel motion. This means that each note within the chord rises or falls by the same interval. In the example to the right, we see a series of quartal chords in parallel motion, in which the intervallic relationship between each consecutive chord member, in this case a minor second, is consistent. Each note in the chord falls by one semitone in each step, from E flat, B flat and F in the first chord to C, G and D in the last.