Joaquim Casimiro (1808-1862) He had his first music lessons at the Sé de Lisboa. He began his professional life as a singer, and managed to make a career as a pianist and organist, first by studying on his own, and later with the support of D. João VI. He also composed, first some religious works like the motins of Santa Luzia, and Reis, a mass and a credo for voice and orchestra. He would later compose comedies, dramas, mágicas OP.erettas, and farse for the theatres of Salitre, in Rua dos Condes, of Ginásio, of D. Maria and for the Variety Theatre.