Chord Substitution

Chord substitution is a musical technique where one chord is replaced with another to create variety in a song while maintaining its overall harmony. This enhances the music's emotional depth or complexity without altering the melody. For instance, a common chord might be replaced with its relative minor or a closely related chord, giving the same progression a fresh sound. Musicians often use substitutions to surprise listeners or to add personal flair to their performances, allowing for creativity while still staying within the original song's framework.