No Fret Quartet

High School Quartet Covers Beware of Darkness “Howl” [VIDEO]
That sound you hear is a sigh of relief.  A sigh of relief from parents worried that their offspring were doomed to fall into the lure of the pop music dreck of Miley Cyrus and Justin Beiber.
We've seen Ohio music teacher Aaron O'Keefe's students absolutely kill on covers of tunes…