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 lowest note - middle C. Some flutes can go to the B below that note. This is dependent on something called a B foot joint, which not all flutes have. The highest note - usually given as the A sitting on top of the fourth ledger line above the treble staff.