Point of convergence

Jazz is a form of music where based on the theme there is plenty of freedom to improvise .In rendition of Raaga musicians improvise using notes of the Raaga which may for the purpose of discussion be referred as scale and various of rhythmic structure .
So point of convergence is there -Both these kinds of music improvisation is primarily based on the theme or song and ultimately come back to the main song after improvising for a fixed number of cycles of bars Basic thing is to improvise as freely as possible but at the same time not going beyond the boundaries of theme which might not be essence of the music .
In jazz various harmonic notes are used and even the chromatic notes are used very frequently but in Raaga this freedom is available but then there are different kinds freedom . Freedom in creating various moods and melodic variations. Various Rhythmic structure are also used in rendition Raaga .
Subject is explored extensively in my portal www.orientalblues.com .