Tadeo Tornel was known in Murcia as an instrument builder; as a composer, besides the two works attributed to him in E-TOT 1, there is a Miserere atributed to him at Murcia Cathedral Archive. The most important biographical study about him is by Enrique Máximo García, "Tadeo Tornel 'ymbentor de ynstrumentos de música' ", Imafronte, 15 (2000), 167-181; it can be consulted in the following link: https://revistas.um.es/imafronte/article/view/37701/36201.