Which composer responded to the reforms of the council of trent in an exemplary fashion?

The answer is Giovanni Pierluigi da Palestrina, an Italian Renaissance composer of sacred music that was born in 1525. In 1562, when he was 37 years old, the Council of Trent was about to suppress choral music in the Catholic Church when Palestrina presented three masses he had written with the hope of introducing a new style of music that would be more appropriate for the liturgy. One of them, the famous Missa Papae Marcelli (Mass of Pope Marcellus, who occupied the throne of San Pedro only three weeks) was elected by the Council of Cardinals who considered that it perfectly responded to his purposes, and when it was sung in the presence of the Pope Pius IV, he also accepted it and the Council proposal was abandoned. This is the reason why Palestrina is called "Saviour of Church Music" during the reforms of the Council of Trent.

b) that he was not a free man