Although many physical therapists practice in hospitals, more than 80% practice in other settings. Acute Care - In this setting, physical therapy is provided to individuals who are admitted to a hospital for short-term patient care for reasons such as illness, surgery, accident, or recovery from a trauma.
In an opera, the beginning of an orchestral piece is called an overture. Other orchestral performances don't have a special name for the beginning.
The first thing to learn an opera is to know the story. Reading the synopsis can suffice, better yet, reading the libretto. Both libretto and synopsis are usually found with the CD set. You can find them as well in Internet. Once you are familiar with the plot, it is time to hear the music.