Making the world better, one answer at a time. Cats and humans have many muscles in common. Five of these are the Extensor Digitorum Lateralis, Palmaris Longus, Gluteus Maximus, Rhomboidus, and Teres Major.
The high note Christine sings (the highest note in the show) is an E, and sometimes the note strains the voice so they give the girl a break. To be more precise, in the song Phantom of the Opera with Sarah Brightman in her earliest days that end note is an off the chart E6.
Takao Ishigaki, has seen the show 20+ times (Toronto, London, New York, Tokyo, Seoul) Views. The second last line of the musical is actually the refrain from All I ask of You and again, Christine and Raoul are singing the song to each other on the Phantom's boat leaving the lair.