shaan sings better now or 6 years before

human body skills always improve with practice and never go down in general. The possibility of loosing your skill can only occur when some physical damage to body by an accident. So the formula would also prove to be true with Shan too. The song may not felt good if the music director fails it to edit that properly sometimes and it's never can be the fault of singer in anyway. all the best from oarnamav.