Topic summary
Double bill
Extracted from the Wikipedia article Double feature.
Operatic use
Opera houses staged two operas together for the sake of providing long performance for the audience. This was related to one-act or two-act short operas that were otherwise commercially hard to stage alone. A prominent example is the double-bill of Pagliacci with Cavalleria rusticana first staged on 22 December 1893 by the Met (NYC). The two operas have since been frequently performed as a double bill, a pairing referred to in the operatic world colloquially as "Cav and Pag".