Collage

Collage (from the French: coller, "to glue") is a technique primarily used in 20th century visual arts, where different materials are used in one artwork. 

Collage (from the French: coller, "to glue") is a technique primarily used in 20th century visual arts, where different materials are used in one artwork. In music, collage usually means the playful usage of contrasting musical material of different periods and styles of music history, as well as combining fragments of the works by different composers for creating a new piece.