hi bornysblues,this is not folk music this is pure indian classical music,this is the alap part which appoach the notes of the scale gradually,and it is 200% improvisation. To achieve this level of playing one must train very hard during years.
I love this stuff. I'm basically a blues/jazz player, but I would love to get more into different kinds of folk music. Is this mainly improvisation, or a composition? Beautiful.
it's improvised. But there is a fixed composition too and there are certain rules to improvise. It's not that you just sit and play whatever you want. As it's a particular raga and the ascending and descending are decided and the phrases should be used as it is taught by an antique oral tradition to establish the sentiment which is required in a particular raga(there are thousands of ragas). so improvised with certain desciplines.