?Our goal is to give the user a modern-day, systematically structured vocal coach who satisfies the demands of present-day theater practice. At long last a consistent repertoire and a well-ordered conflation of respective audition arias for all vocal genres.? (Peter Anton Ling and Marina Sandel, editors)
OperAria - repertoire anthology of opera arias according to vocal criteria (range, tessitura, specifics, type of aria) with due regard to practical aspects of musical and theatrical nature (style, era, role type, national provenance)
with comments on the arias
information on the composer, the librettist, the work, the range and of versions or casting a short synopsis of the contents illuminating the basic dramatic constellation in the context of the opera's plot an evaluation from the singer's point of view
it 
