Hemiola: How to Count, Play & Practice
A hemiola regroups the same span of music from three groups of two into two groups of three, or the reverse, shifting where the accents fall.
Hear Hemiola: Count Along
Press play and say the counts under the highlighted squares. Dashed squares are silent.
Four bars play, then it stops. The tempo shown is the beat, not the grid step.
Hemiola Explained
A hemiola is a rhythmic device where the pulse temporarily shifts from groups of three to groups of two (or vice versa), creating a sense of metric ambiguity. In 3/4 time, a hemiola makes two measures of three beats feel like three groups of two, and in 6/8, it shifts from two groups of three to three groups of two. Hemiolas are a hallmark of Baroque music, Latin music, and Romantic-era waltzes.
How to Count
In 3/4 time, normally count '1-2-3, 1-2-3.' During a hemiola, regroup the six beats across two measures as '1-2, 1-2, 1-2', three groups of two instead of two groups of three. Accent every other beat instead of every third beat. The underlying tempo does not change; only the grouping shifts.
Hemiola in Real Music
Hemiola is a temporary change of accent rather than a change of meter, and it has been a standard expressive device since the Renaissance. Baroque composers used it almost formulaically at cadences: in a movement in 3/4, the two bars before a final chord are often accented as three groups of two, so the music seems to broaden just before it lands. Once you know the sound, you hear it at the close of Handel and Corelli movements constantly. Brahms made hemiola part of his personal style, layering duple groupings across triple meter so persistently that his textures can feel like two pieces at once. The best-known modern example is Bernstein's America from West Side Story, which alternates bars felt as two beats of three with bars felt as three beats of two, and the swing between the two hearings is the whole character of the number. Flamenco and Latin American music, including many pieces in 6/8, do the same thing as a matter of course. The performer's note is that you must keep the written meter running underneath. A hemiola is only exciting because the listener still expects the original grouping; if you actually change tempo or lose the barline, the effect vanishes. Count the smallest common unit, usually the eighth note, and let the accents move while the pulse stays fixed.
Common Mistakes
- Changing the tempo during the hemiola instead of only regrouping the existing beats.
- Not committing to the shifted accent pattern, making the hemiola sound tentative rather than deliberate.
- Confusing hemiola with a time signature change, the meter does not actually change, just the accentuation.
Practice Exercise
Set a metronome to 90 BPM in 3/4 (three clicks per measure). Clap on beat 1 of each measure for four measures. Then, across the next two measures (six beats), clap a hemiola: accent beats 1, 3, and 5 instead of 1 and 4. The metronome keeps ticking in three, but your accents create groups of two. Alternate between normal 3/4 and hemiola.
Suggested metronome tempos: Slow: 60 BPM · Medium: 90 BPM · Fast: 132 BPM
Related Time Signatures
Related Rhythm Patterns
Common Genres
FAQ
What is a hemiola?
A hemiola is a rhythmic technique that regroups beats, typically shifting from groups of three to groups of two (or vice versa) without changing the tempo. It creates a momentary sense of metric shift that resolves when the normal grouping returns.
Where do hemiolas appear most often?
Hemiolas are extremely common in Baroque dance suites (especially sarabandes and courantes), Brahms's music, Latin music (particularly in the interaction between 6/8 and 3/4), and flamenco.
How do you count a hemiola?
Count the smallest common subdivision, usually eighth or quarter notes, and keep it perfectly steady. Then place accents every two units instead of every three, or every three instead of every two, without altering the underlying pulse.
What is the difference between a hemiola and a polyrhythm?
A hemiola is a temporary regrouping heard one after another or as a shift of accent, so a single pulse still governs. A polyrhythm sounds two different pulse rates simultaneously, with both layers running at the same time.
How fast should I practice hemiolas?
Try 60 BPM at first so you can hear the regrouping clearly against a steady pulse. Move to 90 BPM once the accents land without disturbing the tempo, and 132 BPM for lively dance and Baroque movements.
Related References
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