Answer
S. P. Balasubrahmanyam's musical mentor was S. P. Kodandapani. Kodandapani was born in 1907 in the village of Kollipara in the state of Andhra Pradesh, India. He was a noted vocalist and teacher of music. He was also a composer and actor. Balasubrahmanyam studied music under Kodandapani from a young age. Kodandapani was a major influence on Balasubrahmanyam's musical career.