Nephew of the zarzuela composer, José de Nebra, Manuel Blasco de Nebra wrote some 170 works of which only 26 keyboard sonatas and six pastorellas are known today. This disc features his earliest known pieces, six sonatas from the Osuna Encarnación Monastery manuscript, with two from manuscripts preserved in the Santa Clara Convent and five from the Montserrat Abbey Archive, through which may be traced the development of the sonata from simple beginnings to more modern, fully-fledged forms. This is the first of three volumes which together will offer for the first time all of de Nebra’s surviving sonatas.