Crotchets and quavers, or, Revelations of an opera manager in America

["Opera" "Musicians" "Correspondence" "Biography" "Opera companies" "Opera producers and directors" "History" "Correspondence reminiscences" "19th century" "Producteurs et metteurs en sc\u00e8ne d'op\u00e9ra" "Biographies" "Troupes d'op\u00e9ra" "Op\u00e9ra" "Opera biography"]