Nadasangamam, the music wing of Narada Gana Sabha Trust has organised ‘Ragantara- Raga perspectives seen in the compositions of Sri Muthuswami Dikshitar and Sri Thyagaraja’, by Dr. R.S. Jayalakshmi, R.K Shriramkumar and Sumithra Vasudev on Nov 16. At T. T. K. Road, Alwarpet, 6.15 p.m.