Wikipedia
Venkatamakhin
Venkatamakhin also known as Venkateshwara, was a prominent musicologist and composer of Carnatic music. He is renowned for his Chaturdandi Prakashika in which he explicates the melakarta system of classifying ragas. Venkatamakhin composed geethams and prabandhas, as well as 24 ashtapadis in praise of Lord Thyagaraja of Tiruvarur.