Improvisatory music is a term used in music where there is spontaneity in performing without a preplanned structure. But in world’s music cultures improvisation has played a great part. When what is improvised is played many times, the individual aesthetics begin to be more and more pronounced and at one point of time it becomes compositional. In Western classical music although it has come to be understood as compositional with a fixed structure for performance with precise notation indicating how a particular melody supported by harmony to be played, it had also passed through the improvisatory stages. Bach, Beethoven and others were known to had been improvisers. Only by the 15th century there came a dividing line between improvisation and composition. Refer http://en.wikipedia.org/wiki/Musical_improvisation.

The American jazz idiom comes close to Indian music primarily due to the improvisatory nature. Many Karnatak musicians have played with Jazz musicians because of this commonality. Although there are very few exceptions, what happens in general is that the Jazz musicians borrow the ideas of rhythmic and scalar based improvisations and bring in improvisations which bluntly suggest the typical characteristics of Indian raga and tala concepts. On the other hand, the COMET music education brings in the Indian musical concepts in such a way that it throws open a newer path in improvisation both for the Jazz musicians and Indian musicians to evolve a more unified improvisatory procedure. One of the Jazz drummers, Woody Shaw III, (the son of the famous Woody Herman Shaw Jr.) who worked with the COMET system of education believes that the COMET based education for Jazz would benefit Jazz in a fundamental way. His father was one of finest examples of brilliant original improvisers who were naturally inspired by both the musical and spiritual content of Indian music.