Simplify the following text for a Grade 8 native English-speaking person.
Original: This auditorium , in use since the hall opened in 1891 , was originally called Chamber Music Hall ( later Carnegie Chamber Music Hall ) ; the name was changed to Carnegie Recital Hall in the late 1940s , and finally became Weill Recital Hall in 1986 .
Simplified: Carnegie Hall has three separate concert halls : the Main Hall , the Recital Hall and the Chamber Music Hall .