text: J.S. Bach rearranged two parts of a Missa sine nomine by this composer using two cornets and four trombones.
full_question: J.S. Bach rearranged two parts of a Missa sine nomine by this composer using two cornets and four trombones. This man’s contentious relationship with Carlo Borromeo is depicted in a namesake opera by Hans Pfitzner. This composer is represented by Aloysius in the second part of Johann Fux’s treatise Gradus ad Parnassum. According to a popular legend, a composition by this man caused the Council of Trent to vote not to ban polyphonic music. For 10 points, name this 16th-Century Italian composer of the Pope Marcellus Mass.
first_sentence: J.S. Bach rearranged two parts of a Missa sine nomine by this composer using two cornets and four trombones.