Critical reception. Critics might have reviewed his work over the years. Were his songs praised for their lyrical content and social messages? How do they compare to other playback singers' work? Also, any awards or accolades he received for his singing?
The genre and musical style are important too. His songs range from devotional to folk and classical. I should mention specific composers he collaborated with. For example, Ilaiyaraaja is a prominent composer in Tamil cinema, maybe he worked with Vijayakanth on some songs. Also, how his voice complements different genres. His deep voice is good for male-oriented emotions, maybe? vijayakanth mp3 songs tamil
I should verify the details like the exact movie for each song. For example, "Nenjame Nenjame" is from "Singham," but I should confirm the year and other details to add credibility. Critical reception