When is a track actually your track? Through all the compositions in the world. If your track sounds anything like another track which is out there, can you have legal action taken against you?
I for one think this area is very grey indeed. There are millions of songs out there which sound similar. Do people have the right to sue if they feel it sounds similar to there sound? I feel, they do and they don't. It all depends on the similarities in composition, arrangement, instruments used...etc.
http://www.bbc.co.uk/news/entertainment-arts-23723689