Aquavina

The aquavina was an experimental musical instrument created by Jaques Dudon. [Hopkin, Bart. "Gravikords, Whirlies & Pyrophones: Experimental Musical Instruments". Ellipsis Arts, 1996. # ISBN-13: 978-1559613828 ]

It was essentially a variant of the Appalachian dulcimer, but with a metal resonator body partially filled with water. The player would agitate the instrument while playing, resulting in a constant acoustic phasing effect within the instrument's harmonics.

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