Santhanagopalan style is distinguished by his adherence to strict raga interpretation, especially in his rigorous manodharma (creative interpretation) and raga sancharams (bringing out the essential elements or qualities of a raga). His conformity and respect for the traditional approach to carnatic vocal music is often reflected by the orthodox nature of his concert attire (the panchagacham and namam). Santhanagopalan has been acknowledged for his emphasis on purity of nada and tone, and his restrained and measured grasp of kritis is regarded well with the Carnatic musical fraternity. Being a thinking man's musician, his cerebral, methodical approach to raga delineation reflects his own growth in music. He is also a Grade A Top artist with All India Radio and Doordarshan.