Are you perhaps talking about Palestrina?
Giovanni Pierluigi da Palestrina is often credited for this achievement, due to his careful setting of words -which made them easier to understand and follow. Thanks to this, it's popularly admitted that the Catholic Church authorities regained respect for an art they thought in decadence and not apt for the services.
moses hogan
Schoenberg
Johann Pachelbel Yo-han Pak-a-bel
Mozart
Michelangelo
It was credited to Lennon/McCartney, but actually written by John Lennon.
This description fits Giovanni Battista Sammartini.
Lorenzo de Medici
The problem is that music and especially opera evolved and no particular composer can really claim credit as such. Subjectively I think that Dido and Aeneas [1689] by Henry Purcell was the first opera of a fully integrated art form. The link below provides a history of opera so you can decided for yourself.
Composer Meaning Person Who Writes Music/Songs, Yes He Is.Most Of Bon Jovi's Songs Are Credited As Bon Jovi/Sambora, Occasionally Bon Jovi/Sambora/Child
Branden Hoffman is a composer. He is credited with only one movie, The Pizza Delivery Massacre, a film made in 2010.