That brutal monarch, Louis XI of France, is said to have constructed, with the assistance of the Abbé de Baigne, an instrument designated a ‘pig organ,’ for the production of natural sounds. The master of the royal music, having made a very large and varied assortment of swine, embracing specimens of all breeds and ages, these were carefully voiced, and placed in order, according to their several tones and semitones, and so arranged that a key-board communicated with them, severally and individually, by means of rods ending in sharp spikes. In this way a player, by touching any note, could instantly sound a corresponding note in nature, and was enabled to produce at will either natural melody or harmony! The result is said to have been striking, but not very grateful to human ears.
— J. Crofts, “Colour-Music,” The Gentleman’s Magazine, September 1885