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Timbre: the colour of sound — Music, 7–10 years

Timbre helps us tell sounds apart, even when they have the same pitch and loudness. It is why a piano and a trumpet can play the same note but still sound different.

What is timbre?

Timbre is the sound’s special character, sometimes called its colour. It lets you recognise a friend’s voice or tell a violin from a flute, even when both play the same note at the same loudness. The shape and material of an instrument help create that character.

Why do sounds need different colours?

If every instrument sounded alike, musicians could not make a song feel full or help us know who is playing. People noticed long ago that changing the material, shape or way of playing changed the sound. Timbre gives each instrument and voice an identity, so music can have contrast and character.

Compare two sounds

First, play middle C on a piano and sing the same note. Next, keep the pitch and loudness as similar as you can. Listen to the difference: the piano has a struck, ringing quality, while the voice has changing breath and vowels. The notes match, but their timbres do not.

The loudness trap

A common mistake is to think timbre just means loud or quiet. That is reasonable because a louder sound often seems more noticeable and can feel different. But loudness tells how strong the sound is; timbre tells what kind of sound it is. Compare a soft trumpet with a soft piano to hear the difference.

Timbre outside music class

Timbre helps you identify sounds without seeing their source. You may recognise a parent’s voice in another room, a bicycle bell in traffic or a familiar animal nearby. Film and game makers also choose different timbres to make a character, place or danger easier to recognise.

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