[arr] Oxygen band Nenjinilae instrumental

[Thulasi Ram]

could anyone please clarify the starting (~15 secs) and the ending (20
~secs) tunes of the oxygen band instrumental? it is not from nenjinilae
tune. are those parts composed by themselves? m curious to know as those
bits are very mesmerizing. especially the last 20 secs. great performance by
the violinist.