Answer:
Gaston Leroux the creator of the Phantom of the Opera, he intended to be full pledge Opera because the Phantom had a huge vocal range.
Chapter XII Apollo's Lyre- I heard a long, beautiful wail which I knew well. It is the plaint of Lazarus when, at the sound of the Redeemer's voice, he begins to open his eyes and see the light of day. It was the music which you and I, Raoul, heard at Perros. And then the voice began to sing the leading phrase, "Come! And believe in me! Whoso believes in me shall live! Walk! Whoso hath believed in me shall never die!...' Come! And believe in me!' I believed in it, I came....I came and-- this was the extraordinary thing--my dressing-room, as I moved, seemed to lengthen out...to lengthen out....Evidently, it must have been an effect of mirrors...for I had the mirror in front of me....And, suddenly, I was outside the room without knowing how!"
"I had no time to think about the meaning he put into his words. We at once began the duet in Othello and already the catastrophe was upon us. I sang Desdemona with a despair, a terror which I had never displayed before. As for him, his voice thundered forth his revengeful soul at every note. Love, jealousy, hatred, burst out around us in harrowing cries. Erik's black mask made me think of the natural mask of the Moor of Venice. He was Othello himself. Suddenly, I felt a need to see beneath the mask. I wanted to know the face of the voice, and, with a movement which I was utterly unable to control, swiftly my fingers tore away the mask. Oh, horror, horror, horror!"
Othello, the Moor of Venice is a tragedy by William Shakespeare, believed to have been written in approximately 1603.Giuseppe Verdi and librettist Arrigo Boito adapted Shakespeare's play to Otello, an Italian grand opera in four acts that was first performed at the Teatro alla Scala, Milan on February 5, 1887. Othello is traditionally sung by a tenor.
Francesco Tamagno-was renowned for the extreme power of his singing, especially in the upper register. Indeed, music critics often likened the sound of his voice to that of a trumpet or even a cannon. (This rare type of singer is called a "tenore robusto" or "tenore di forza" by Italians.) Tamagno's vocal range extended effortlessly up to the high C-sharp during his prime. He was no mere 'belter' of high notes, however; his recordings provide evidence of his ability, even at career's end, to modulate the dynamic levels of his clarion instrument with remarkable skill and unexpected sensitivity.
His international career would not take off in an explosive way until the 1887-1888 season, with the role of Otello -- which Verdi had written with Tamagno's extraordinary voice in mind -- serving as his global calling card. Tamagno travelled widely during the final dozen years of the 19th century, accepting lucrative invitations to perform Otello and other strenuous operatic parts in France, Portugal, Spain (where he had first sung in 1875-1876), Germany, Austria, Russia, Uruguay, Brazil, Mexico and, as we have noted, Argentina.
The musical written by Andrew Lloyd Webber, it is not a opera but a musical operetta inspired.
Operetta grew out of the French opéra comique around the middle of the 19th century, to satisfy a need for short, light works in contrast to the full-length entertainment of the increasingly serious opéra comique.