The guitars shred. The rhythms rise like a rumbling tsunami wave. But the songs also soar with brain-burrowing melodies, uplifting and bittersweet. And it’s all tied together by passionate conviction. That’s the contemporary hard rock sound of Quarterfly on its third album and Rock Ridge Music debut, “Do You Believe.” Based in Spartanburg, SC, Quarterfly has built a loyal following throughout the southeast and mid-Atlantic areas through a hands-on, DIY approach by all four band members when it comes to marketing and promotion coupled with live shows that always connect with the crowd.