Before we can actually understand the importance of music covers we need to understand the fact that the ordeal of getting to replicate a tune near to perfection is pretty tormenting. It needs accurate and perfect musical sense and that needs to be followed up with a perfect instrumental backup. The ability to replicate a tone is not the real challenge, for a far greater ordeal lies in producing the same effect on the masses. The execution of the musical melody is really important. The fact is that if the person is not able to execute the music in a perfect manner then the challenge could be even greater.