Duplets — How to Count, Play & Practice
A duplet fits two notes into the space normally occupied by three, essentially the inverse of a triplet. Duplets occur in compound time signatures like 6/8, where the default subdivision is three eighth notes per beat — a duplet replaces those three with two evenly spaced notes. They create a momentary feeling of broadening or simplification within the compound pulse.
How to Count
In 6/8 time, where each dotted-quarter-note beat normally divides into three eighth notes, count the duplet as '1 - 2' spread evenly across the same duration. Each duplet note lasts 1.5 eighth notes. Practice by tapping steady triplet eighth notes with one hand while playing only two evenly spaced notes with the other over the same span.
Common Mistakes
- Spacing the two duplet notes as if they were two-thirds of the beat rather than the full beat, cutting the second note short.
- Confusing duplets with simply playing two eighth notes in compound time, which would be too fast.
- Not internalizing the underlying three-note pulse, which is needed to place the duplet evenly.
Practice Exercise
Set a metronome to 50 BPM dotted quarter note in 6/8. Clap three eighth notes per beat for two measures, then switch to two evenly spaced claps per beat (duplets) for two measures. Alternate back and forth, ensuring the duplets fill the exact same duration as the three eighth notes.
Suggested metronome tempos: Slow: 40 BPM · Medium: 60 BPM · Fast: 90 BPM
Related Time Signatures
Related Rhythm Patterns
Common Genres
FAQ
What is a duplet?
A duplet is two notes played in the time normally given to three notes of the same value. It is the opposite of a triplet and occurs most often in compound time signatures where the beat naturally divides into three.
When would you use a duplet?
Duplets appear when a composer wants a momentary duple feel within compound time. For instance, in a 6/8 passage, a duplet creates a brief broadening effect, as if the music momentarily shifts to a simpler subdivision.
Related References
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