pastiche \pas-TEESH; pahs-\, noun:
1. A work of art that imitates the style of some previous work.
2. A musical, literary, or artistic composition consisting of selections from various works.
3. A hodgepodge; an incongruous combination of different styles and ingredients.
Whoever said the unexamined life is not worth living apparently never intended to go into book publishing, where there is almost no research and where much of the conventional wisdom is a pastiche of folklore, myth and wishful thinking.
-- Edwin McDowell, "Publishing: And They All Said It Wouldn't Sell", New York Times, February 6, 1989
Pastiche comes from Italian pasticcio, "a paste," hence "a hodgepodge, literary or musical," ultimately from Latin pasta, "paste."