Composer and librettist information, plot summary, principal characters, principal musical numbers, and instrumentation.

Characters and their voice ranges with composer, librettist, and first performance noted. Includes summary, background material, and staging relationship with Mascagni's Cavalleria Rusticana.

Edited and with background material by Mark D. Lew. Footnoted with explanations, spelling conventionalized, with libretto divided among prologue and the two acts.

Opera World article by Dian Syrcle discusses the work as an exploration of social tolerance. Includes synopsis that gives away the ending.

Notes concerning a November 1996 production include background materials and referrals to various opera companies. Jim DeLaHunt provides, instead of a factual summary, an emotional plot of the work.

Opera Resource provides background on the composer and his only enduring work. Includes links to related material, synopsis, and libretto.