voice type leitmotif timbre zarzuela vocal cords sprechgesang head voice fach tristan chord lyric soprano opera house dramatic soprano chest voice wagner tuba singspiel grand opera sopranist list of opera genres opéra comique monodrama romantische oper french overture kammersänger tragédie en musique divertissement haute-contre pasticcio opéra bouffe opéra-ballet mad scene heldentenor chamber opera regietheater number opera rage aria melodramma italian overture
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