The present study, carefully edited, already announces in its title a very precise description of its subject. It is preceded by another, published in 2012 (La música en la Colegiata de Santa María la Mayor de Talavera de la Reina durante el siglo XVIII), in which the same author revealed the existence, until then little or not known, of an intense musical activity linked to the collegiate church and focused, even from several centuries ago, on a fully constituted chapel. The half century from 1800 to 1851 was a period of clear decline for the music chapel of the Collegiate Church of Talavera de la Reina, as for many others in Spain:.