11.   The assembled goatees and ponytails bobbed to a screeching guitar riff that improbably got even louder.

12.   The musical styles are the same, with punk and metal sounds heavy on guitar riffs and loud drums.

13.   They have the same languid, blues-based guitar riffs and the unpretentious quality.

14.   Tom Dumont tosses off understated, inventive guitar riffs, the melodies flow effortlessly and the rhythm section keeps everything moving forward with abandon.

15.   Unless the Nets can get Phil Jackson, who sounds happy matching guitar riffs with Robbie Robertson at Woodstock, why not keep Case?

16.   Usually playing an electric guitar with a menacing hint of distortion, he picked barbed, syncopated guitar riffs that went on to become cornerstones of rock.

17.   What caught their attention was that after the familiar opening guitar riff, the song dissolved into a jazzy, big-band version.

18.   A crowd of several hundred, often recognizing the music after a single guitar riff, applauded wildly, flickering their lighters, and pumping their fists.

19.   An image of a leather jacket unzipping opened every new scene, accompanied by a harsh guitar riff.

20.   But they occasionally seem to have an identity crisis, slipping into Southern-style ZZ-Top slide guitar riffs at inopportune moments.