Fictional musical instrument from the fantasy short story "Bethmoora" by Lord Dunsany, published in the collection A Dreamer's Tales, 1910. Perhaps a string instrument. It is not described.
It was a radiant day, and the people of the city were dancing by the vineyards, while here and there one played upon the kalipac.
They ran down out of their fair white houses and streamed through the copper gate, the throbbing of the tambang and the tittibuk suddenly ceased with the note of the zootibar, and the clinking kalipac stopped a moment after.
And look at this review from The Musical Times August 1, 1919:
At his pianoforte recital in Crane Hall on June 18, Mr. Joseph Greene introduced three remarkable 'Eastern Pieces' by Norman Peterkin, a young local composer who has musically illustrated subjects from Lord Dunsany’s 'Dreamer's Tales' with extraordinary suggestiveness. The music is saturated with Eastern rhythms and weird melodies. These appear to have an attraction approaching to an obsession of which the composer might well beware. At least his atmospheric harmonies are novel and cleverly contrived, especially in one instance which depicts 'little gardens at the desert’s edge where men beat the tambang and the tittibuk, and blew melodiously the zootibar, while here and there one played upon the kalipac.'
Unlike some of his other fictional instruments, the kalipac does not seem to appear in any other of Dunsany's works.