 The fourth sub @-@ book of Manasollasa deals with entertainment such as music , dance , songs and competitive sports . The text covers dance and music in exclusive chapters , dedicating far more verses to these two topics than first two sub @-@ books combined . This may reflect the importance of performance arts in 12th @-@ century India , since Someshvara III 's son and successor to the throne king Jagadekamalla II also wrote a famed treatise Sangita @-@ chudamani , literally " crown jewel of music " . 
