Occuping an important place on the stage of Tibetan opera, Gyangkar Tibetan Opera of Rinbung County belongs to one of three most famous schools of Tsang operas. Tibetan opera, which means Fairy in Tibetan, is the traditional opera of Tibet. It is said that the art tradition was created by Drupthok Thangthong Gyalpo, a monk and ridge builder in the 14th century. The tradition was passed down and developed into Tibetan opera, popular throughout the region. Usually, performances are held on various festive occasions, such as Shoton.

Buddhist teachings and local history are the sources of Tibetan Opera's inspiration, so most of its repertoire is based on them. The traditional drama is a combination of dances, chants, songs, and masks. The highlight of Lhamo is its mask. Usually on the forehead of the mask there is a motif of the Sun and Moon. From the mask, the role of the player can be identified. A red mask refers to the King; a green the queen; a yellow lamas and deities, etc.