http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
147 pages : illustrations, music, photographs ; 22 cm.
translated and introduced by Ellen H. Bleiler.
"Complete companion to the opera containing: full libretto ... plot and action summary, background information, sources, performance history, biography of composer and librettist, musical themes, pictorial section of 76 illustrations of composer, performances, staging, etc."
From the Howard Mayer Brown, Edward Downes and Mary Schieffelin book collections, October 2004.