Bartolomé Ramos de Pareja (ca. 1440 – 1522) was a Spanish mathematician, music theorist, and composer. His only surviving work is the Latin treatise Musica practica. By his own testimony at the end of his Musica practica, Ramos de Pareja was born in Baeza, possibly around 1440. Most of the biographical details of his life must be culled from this treatise. He says that he was a student of and that he obtained the chair of music at the University of Salamanca for his commentaries on the works of Boethius (cum Boetium in musica legeremus). At Salamanca he had many debates with Pedro de Osma concerning his musical theories. In 1482, when he published his Musica, he revolutionarily proposed a new, five-limit division of the monochord, breaking from the Pythagorean system that had dominated th