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.
Notice the high baroque style of the writing for the voice seen in the intricate, ornamental lines with their long strings of eighth notes (in version A, sixteenth notes in version B). Notice too the word painting for the word rejoice in jubilant, long ornamented lines. The overall form of a da capo aria is A-B-A'.