Carnatic music Bharatnatyam Nilakana Sastri s book on Cholas published in 1955 has section on their temple culture that was a precursor to Carnatic Music and Bharatanatyam You should get it if you already do not have it Also the K Indrapala s Evolution of an ethnic identity puts it together as to how Chola Art forms directly lead to Bharatanatyam forms in sculptures in Sri Lanka Indrapal quotes Nilakanta Sastri extensively