Occurs when the feel is shifted so that the listener's ear hears the groove shifting ... as if there were an odd metre or odd bar thrown in to "throw everything off" when in reality the metre is still the same, but a different down-beat or back-beat is felt. An example may be that the shifting happens a sixteenth sooner, or sixteenth later ... or an eighth-note ... or a quarter-note. The shifting process, which creates tension or dissonance in the music, typically resolves itself so that the listener now feels a release or consonance in the groove or music.