The time signature 9/8 can be grouped in a few different ways, depending on the desired rhythmic feel. Common groupings for 9/8 include:
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Triple Grouping: Grouped as three beats of dotted quarter notes (3 beats), where each beat can be subdivided into three eighth notes. This gives it a feel similar to a slow 3/4 or a compound time signature:
- 1-2-3, 1-2-3, 1-2-3
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Duple Grouping: Grouped as two beats of triplet feel, with each beat having a subdivision of four eighth notes. This can create a more driving or faster feel:
- 1-2, 1-2, 1-2 - where each 1-2 contains a quarter note and three eighth notes.
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Mixed Grouping: Occasionally, you might find it grouped in a combination, such as a bar of 2 beats and a bar of 3 beats, though this is less common.
The specific grouping often influences the musical style and the feel of the piece, whether it be dance-like, flowing, or more weighted.