A chord progression (also chord sequence and harmonic progression or sequence), as its name implies, is a series of
chords played in order. Chord progressions are central to most modern European-influenced
music and the principle study of
harmony. Compare to a
simultaneity succession. A chord change is a movement from one chord to another and may be thought of as either the most basic chord progression or as a portion of longer chord progressions which involve more than two chords (see
shift of level).
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