The Geocache is NOT at the posted coordinates!!

You must correctly identify the featured musical instrument to get the correct set of coordinates. Type in the correct name of the instrument. Four choices are listed. One of them is the right one.

This musical instrument that adds a "buzzing" timbral quality to a player's voice when the player vocalizes into it. It is a type of mirliton, which is a membranophone, one of a class of instruments which modifies its player's voice by way of a vibrating membrane of goldbeater's skin or material with similar characteristics.

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Eunuch Flute

Kazoo

Mirliton

Swazzle

You can validate your puzzle solution with certitude.

Congrats to joy2u for making the FTF