ピエトロ・マスカーニ
L'amico Fritz () is an opera in three acts by Pietro Mascagni, premiered in 1891 from a libretto by P. Suardon (Nicola Daspuro) (with additions by Giovanni Targioni-Tozzetti), based on the French novel "L'ami Fritz" by Émile Erckmann and Pierre-Alexandre Chatrian.