pièce d'occasion

plural pièces d'occasion

1. An artistic composition written for a particular occasion.

   Terence Rattigan’s brittle bitter-sweet comedy The Sleeping Prince (written as a pièce d’occasion for Queen Elizabeth’s coronation) centres on the romance between an American actress (Marilyn Monroe) and a lecherous Balkan guest at the 1911 coronation of George V.

   1999 March 28, Phillip French, The Guardian

   1 more example

   In 1756, arch-Jansenist publicist Le Paige produced, under cover of anonymity, a pièce d'occasion, the Lettres sur les lits de justice, which argued, on the basis of impressive antiquarian research, that the ceremony was in fact heir to ancient Frankish assemblies [...].

   2002, Colin Jones, The Great Nation, Penguin, published 2003, page 246