Originally Posted by aka123

It is not that easy to prove copyright infringement in music, as taking influence is allowed. Also, it is not that easy to prove in the first place that some pling, plong, pling, plong with the guitar forms some unique piece of art, and no one else can use pling, plong, pling, plong. The copyright infringement has to be quite obvious to have some case to begin with and usually be enough substantial (for example have enough length).