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.
Deformed since birth, a bitter man known only as the Phantom lives in the sewers underneath the Paris Opera House. He falls in love with the obscure chorus singer Christine, and privately tutors her while terrorizing the rest of the opera house and demanding Christine be given lead roles. Things get worse when Christine meets back up with her childhood acquaintance Raoul and the two fall in love.