Historians scouring the ruins of a Tibetan monastery have found 30 ancient manuscripts, including one detailing a kind of musical score never seen before.

The manuscripts, dating from the 13th to 18th century and found in Maizhokunggar County, mostly refer to noted Buddhist sutra "Perfection of Wisdom," said Palbar Tsering, director of the regional ancient books protection center, on Thursday.

The scores, consisting of groups of curves and syllabic symbols, have been identified as the music for "chams," religious dances usually staged during important festivals to greet gods and dispel demons.

Experts will try to decipher them so the music can be played to the public, raising awareness of old Buddhist customs, Palbar Tsering said.