pastiche

Noun

1. A work of art, drama, literature, music, or architecture that imitates the work of a previous artist, usually in a positive or neutral way. (Coordinate term: parody)
2. A musical medley, typically quoting other works.
3. An incongruous mixture; a hodgepodge.
4. A postmodern playwriting technique that fuses a variety of styles, genres, and story lines to create a new form.

Verb

1. To create or compose in a mixture of styles.

Etymology

• Via French pastiche, from Italian pasticcio (“pie, something blended”), from Vulgar Latin *pastīcius, from Late Latin pasta (“dough, pastry cake, paste”), from Ancient Greek παστά (pastá, “barley porridge”), from παστός (pastós, “sprinkled with salt”). Doublet of pasticcio.

https://en.wiktionary.org/wiki/pastiche