By Dr. Padmavathi Narasimhan  In memory of Parur Gopala Kishnan, Nadabrahma Sangeetha Sabha had organised Abhishek Raghuram’s vocal concert on Jan.10. He was accompanied by MSG’s disciple H.N. Bhaskar on violin,  Arjun Kumar on mridanga and Ramanujam on ghata. Abhishek is known to be an unusually cerebral singer for one so young. He has a…