Ruggero (or Ruggiero) Giacomo Maria Giuseppe Emmanuele Raffaele Domenico Vincenzo Francesco Donato Leoncavallo was an Italian opera composer. His two-act work Pagliacci remains one of the most popular works in the repertory, appearing as number 19 on the Operabase list of the most-performed operas worldwide in the 2012/13 season.
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