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.
The Phantom of the Opera by Leroux, Gaston View in context. He seemed to see the fat Kentish fields with their stately elms; and his nostrils dilated with the scent of the air; it is laden with the salt of the North Sea, and that makes it keen and sharp.