Rija is a term used by the Cham to designate numerous festivals related to agriculture and clans (for instance, Rija Prong, Rija Nagar or Rija Yaup, etc.)

Rija festivals provide the perfect opportunity to focus on the traditional music of the Cham. Typical musical instruments include the baranung (one -sided drum), kinang (pair of drums), saranai (Cham oboe), and kanhi (two-stringed bow instrument with a tortoise shell resonator). In addition to ritual melodies, saranai tunes, and the over 50 kinang beats that accompany dances, participants can enjoy vai chai tunes characterised by a robust rhythm and an attractive performance. It brings an interesting contribution to the abundant treasure of labour-related songs of the Vietnamese.