Purandara Dasa systematized the method of teaching Karnataka Sangita (Carnatic music) which is followed to the present day. He introduced the raga Mayamalavagowla as the basic scale for music instruction and fashioned a series of graded lessons such as swaravalis, janti swaras, alankaras, lakshana geetas, prabandhas, ugabhogas, daatu varase, geeta, sooladis and kritis.[5] Another contribution was the fusion of bhava, raga, and laya in his compositions. He included comments on ordinary daily life and elements of colloquial language in his lyrics. He introduced folk ragas into the mainstream, setting his lyrics to ragas of his day so that even a common man could learn and sing them.[34] He also composed several lakshya and lakshana geetas, many of which are sung to this day. His sooladis are regarded as musical masterpieces and are the standard for raga lakshana. Scholars attribute the standardization of varna mettus entirely to Purandara Dasa