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Ostinato: a repeating musical idea — Music, 7–10 years

An ostinato is a short musical pattern that keeps returning while other sounds change around it.

Idea

An ostinato is a short musical idea that repeats again and again. It might be a beat, a rhythm, a bass line or a little tune. While it stays in place, another performer can add a melody or change the sounds above it, like building a picture on a steady repeated shape.

Why

Music can become difficult to hold together when many parts keep changing. An ostinato gives performers and listeners an anchor: they know where they are while other ideas move around it. Repeating patterns appeared in many traditions because they support dancing, singing, group playing and gradual musical building.

Worked example

Make a four-beat ostinato with hand drums: tap, tap, clap, rest. Repeat it four times without speeding up. On the second round, a partner sings “la” on a simple tune; on the third, add a shaker; on the fourth, stop the drum but keep the tune. The repeated pattern was the anchor while the music grew.

Common trap

A reasonable mistake is to call any repeated beat an ostinato. Repetition is part of the idea, so the confusion makes sense. Usually, an ostinato is a noticeable musical pattern with its own shape, not simply the basic steady beat that keeps the whole piece moving.

Where it is used

You can hear ostinatos in dance music, film music, folk songs and classroom ensembles. A repeating bass pattern may make a song easy to recognise, while a changing melody gives it variety. In a group, an ostinato can be played by a drum, a xylophone, a keyboard or even a repeated sung phrase.

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