pas·tiche / paˈstēsh; pä-/ • n. an artistic work in a style that imitates that of another work, artist, or period: the operetta is a pastiche of 18th century styles | the songs amount to much more than blatant pastiche. ∎  an artistic work consisting of a medley of pieces taken from various sources. ∎  a confused mixture or jumble: his speech is a pastiche of false starts and unfinished sentences.• v. [tr.] imitate the style of (an artist or work): Gauguin took himself to a Pacific island and pastiched the primitive art he found there.

pastiche (Fr.). Imitation. Not the same as pasticcio, being a work deliberately written in the style of another period or manner, e.g. Prokofiev's Classical Symphony and Stravinsky's Pulcinella. Although pastiche has a meaning as ‘medley’, it is invariably applied musically in the sense outlined above.

pastiche.
1. Work produced in deliberate imitation of another or others, hence an eclectic composition incorporating allusions to earlier styles, often handled with considerable originality.

2. Transfer to another medium of a design, such as a book-cover as a pasticcio of a mosaic. In neither (1) nor (2) is the word pejorative.