The independent art song originated by franz schubert that united music and poetry was called the

This art song by Franz Schubert and Leider is called Die Schone Mullerin. Art song is a type music composed from a poetry with instruments like piano and vocals are united in the music piece. Art song era began with Franz Shubert and his composition unites poetry and music in melodic and harmonious masterpieces.

The term collage was coined by both  georges braque  and  pablo picasso  in the beginning of the 20th century when collage became a distinctive part of modern art.hope this sorry if there wasn't more of an explanation!