Timbre alone lets BaYaka children recognize songs better than Western adults.

Scientists want to know what clues people use to recognize familiar music. Researchers tested this with BaYaka hunter-gatherer children using a game called Move to Match. They played songs that were clean or distorted in different ways. Listeners usually rely on tone color, called timbre, along with pitch and rhythm. The children showed robust recognition of songs when sounds were unaltered, stripped of normal pitch details, or altered in timing. Recognizing heavily degraded audio suggests people process sound shapes across frequencies, rather than just pitch and rhythm. When songs were cut down into brief snippets called plinks, performance dropped because listeners had fewer cues. Even so, their recognition of spectrally degraded plinks beat chance and surpassed Western adults. Timbre may help identify individual contributions during cooperative musical interactions.

Why it matters

This study shows that music recognition depends on more than melody and rhythm—timbre, the texture of a sound, matters too. It suggests that our ancestors may have used timbre to identify each other in group singing, which could have helped cooperation. The findings also challenge Western-centric views of music perception by testing a non-Western population.

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