Mysteries of the soul: soundpost acoustics

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Often called the violin’s ‘soul’, the soundpost is possibly the least understood part of the instrument. Joseph Curtin details a series of experiments that shed light on the acoustic role of this tiny piece of wood

In early June 2025, a group of makers, researchers, players and recording engineers gathered at the University of Michigan’s Duderstadt Center to investigate the acoustics of the violin soundpost. While the post’s basic acoustical function is well understood, not much is known at a scientific level about how soundpost adjustments affect an instrument’s playing qualities…

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