Question: S.Easwara Varma is a violinist who has accompanied an Indian vocalist who is one of ten musicians to receive the Madras Music Academy's Sangeetha Kalanidhi before they turned what?
Sentence (from "Trichur V. Ramachandran"): Trichur V. Ramachandran(born 1940) is a Carnatic music vocalist.
Relevant evidence: No