This allusion is taken form the New
History of the Tang Dynasty. There goes such a story that Emperor Li Longji
(685-762) of the Tang Dynasty (618-907), also known as Tang Ming Huang, loved
music very much. He himself could play several types of musical instruments and
compose music as well. He selected hundreds of young men and maids of the honor,
and settled them in a pear orchard in the capital, Chang'an (present-day Xi'an).
The Emperor taught them in person to sing and play musical instruments. They
were called "the emperor's pear orchard pupils." And the man of letters of the
period, such as Li Bai, all wrote plays for the pear orchard.
Later, the term "Pear Orchard" came
to refer to operatic circles, and opera performers were called "Pear Orchard
pupils". If several generations in a family were opera performers, then the
family was called Pear Orchard Family, such as Maestro Mei Lanfang's
family -- the family was famous for playing Dan roles and Mei Lanfang was
of the third generation.