Leoncavallo: Life and Works - Konrad Dryden - Google Books

https://books.google.de/books?id=LwEh6-URsgkC&pg=PA90&dq=Roland%2Bvon%2BBerlin#v=onepage

Leoncavallo: Life and Works is the first fully documented biography of the beloved and popular composer Ruggiero Leoncavallo (1857-1919), whose credits include Pagliacci and the operatic works Chatterton, Der Roland von Berlin, Zazà, Maïa, Zingari, La…