aeolian harp

a box with an opening in it across which gut strings of varying thickness are stretched, tuned in unison: when air blows over them, the strings produce varying harmonies

See aeolian harp in American Heritage Dictionary 4

noun
An instrument consisting of an open box over which are stretched strings that sound when the wind passes over them. Also called wind harp.

Origin:

Origin: From Aeolian, relating to Aeolus, god of the winds

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