Animuccia published two books of "laudi" for use in the Oratory in 1563 and 1570. His work formed the basis of the oratorios that did not descend from the polyphonic Gregorian "Passions". Animuccia's Florentine influence is evident as some of his texts originate from Florence. Stylistically the two books are rather different. Animuccia's first book contains simple settings of Italian "laudi" which are homophonic throughout, and were probably sung by amateur singers as part of Phillip Neri's early devotional meetings. The music in Animuccia's second book of "laudi" is much more madrigal-like; he uses a greater variety of textures, sonorities, and languages (Latin and Italian). His reasons for the change in style are stated in his dedication: