Bontormian Klesplong
From Wookieepedia, the Star Wars wiki.
The Bontormian Klesplong was a complicated musical instrument built from a Xloff horn, a Troomic sound tube, and a Plandl horn. A cymbal and a radion modulator could be added to accentuate the sound a bit more. Ak-Rev was in possession of a klesplong.
