Sharangdeva
Sharangdeva (1210-1247 AD) is the author of the famous Sangeet Ratnakara. This treatise is so highly regarded that the two important systems of art music in India, Hindustani and Carnatic, try to trace their basic concepts to it. It is divided into seven chapters so also known as Saptadhyayi. Sharangdev was patronized by the Yadavas of Devgiri. The Sangeet Ratnakara explains the construction and the techniques of playing 14 kinds of drums. Sangeet Ratnakar shows that by 13th century, Indian music was started getting highly influenced by Islam. This is evident from some of the names of Rāga mentioned in it such as Turushka Todi and the Turushka Gaud.
