What reed instrument was played by Indian musician S. R. D. Vaidyanathan?
S. R. D. Vaidyanathan: S. R. D. Vaidyanathan (Tamil: S.R.D. வைத்தியநாதன்; 15 March 1929 − 18 November 2013) was an Indian musician who played the Nadhaswara. Nadaswaram: The nadaswaram, nagaswaram, nadhaswaram or nathaswaram is a double reed wind instrument.
the Nadhaswara