A collection of forty exercises or studies of vocalization, with an accompaniment for the piano forte [Música notada]: proceded by observations on the art of singing and upon the organical & material part of the voice / composed & dedicated by permission to her Royal Highness the most serene Señora Doña Luisa Carlota, Infanta of Spain, by Mariano Rodríguez de Ledesma, master of singing to her late Royal Highness the Princess Charlotte of Wales also to her Royal Highness Doña Luisa Carlota formerly composer of music to the Royal Chapel of his most catholic majesty & professor of the private concerts of the King's Chamber & professor & honorary member of the Royal Academy of Music of London

Rodríguez de Ledesma, Mariano (1779-1847)
1831?