Melcior Juncà
[image:Cathedral of Tarragona 02.jpg|thumb|right|Cathedral of Tarragona]
Melcior Juncà i Farré was a Catalan maestro de capilla, composer and music theorist. He was son of a musician, Jacinto Juncà. From 1798 to 1806 he was chapel master at the Cathedral of Tarragona. His treatise La Melopea desconocida describes a method based on speculative and practical division of the octave into twenty-four parts.