Which composer called the drama the events transpiring on the stage deeds of music made visible?

The composer who referred to the drama as "deeds of music made visible" is Richard Wagner. He believed that the integration of music and drama was essential to creating a powerful theatrical experience. Wagner's innovative ideas about Opera and his concept of the Gesamtkunstwerk, or "total work of art," aimed to unify various art forms, including music, poetry, and visual elements, into a cohesive whole.