How many movies have John Kerswell and Ron Washburn collaborated on?

They have worked on 10 movies together! Their first movie together was The Metropolitan Opera: Francesca da Rimini (2013) while their highest rated movie together was The Metropolitan Opera - Puccini: Madama Butterfly (2016). They have not worked together since The Metropolitan Opera - Puccini: Madama Butterfly (2016). They are most known for their music films together.