Evolution of Raaga
Raagas have changed and even transformed with respect to the definition given by Bharatamuni. Of course, it is only natural for perspective of arts to change with times. The most ancient forms of music that we can trace goes back to the Vedas. We can experience the early forms in folk, tribal music as well as in some theatrical music such as in yakshagaana or sopaanam. Apart from this, musicologists like Shrangadeva, PandarikaVitthala have theorized and described in detail the lakshana(characteristics) in their works.