His play reflected his own different moods and the demands of his audience with whom he established and enjoyed a good rapport.

At the age of 12, he accompanied great stalwarts like Ariyakudi Ramanuja Iyengar, Semmangudi Srinivasa Iyer and Maharajapuram Santhanam in concerts.

[citation needed] Vaidyanathan had deep faith in the therapeutic merits of music.

An able administrator, Vaidyanathan served as Secretary of the Tamil Nadu Iyal Isai Nadaga Mandram.

As the Secretary of Thyagabrahma Sabha, Thiruvaiyaru in Thanjavur district, he conducted the Tyagaraja Aradhana for several years.

He died of a heart attack on September 8, 2008 at the age of 73 at Porur Ramachandra Hospital, Chennai.