apposition aria aria di sorbetto arioso bel canto breeches role burletta cabaletta cadenza cantabile castrato cavatina choir claque coloratura comprimario convenienze coup de glotte da capo aria diva divertissement duodrama fach falsetto falsettone fioritura genre gesamtkunstwerk head voice intermezzo international standard book number jerome of moravia larynx legato leitmotif libretto literaturoper mad scene maestro melodrama melodramma messa di voce modal voice monodrama opera opera house passaggio phonation portamento prima donna prompter recitative regietheater ritornello singing sitzprobe speech and language pathology spinto sprechgesang squillo stagione stroboscope surtitles tessitura thorax timbre vibrato vocal folds vocal music vocal pedagogy vocal range vocal register vocal resonation vocal weight voice classification in non-classical music voice type