As a power metal fan , I too ran into this problem . However , as you listen to a band more and more you grow used to the different vocalist styles and voices and be able to decipher it . For example , I can easily listen to anything Hansi Krsch or Tobias Sammet sings , because I love Blind Guardian and Avantasia , which are their bands . However , I can barely understand anything outside the subgenre . Just look up the lyrics and you ' ll be fine . As for the importance of the lyrics , it depends on the band . With some bands , they ' d be better if you cut out the singers vocal chords and beat them to death with a guitar . Others can add irreplaceable depth to a song with every subtle intricacy of their voice . On the latter end of the spectrum , I think somewhat incomprehensible lyrics add to the fun , by giving you something new to discover every time you listen to a song .