As Mʳ. Jocaste Posayoc he called himself "Profesor de música e instrumentista". He published 1850 the "El fandango variado" from Dionisio Aguado (1784-1849) and possibly may have been pupil and friend of Aguado. (See José L. Romanillos: "Antonio de Torres, Guitar Maker: His Life and Work", Winspear, 1995, p. 291). He had a music-shop in Madrid (Piano-Fortes). Was he also a luthier (guitars)?
