The Avett Brothers' music has roots in traditional folk and bluegrass, but also captures the high spirits and no-boundaries attitude of rock & roll -- which is appropriate, since rock is where Scott Avett and Seth Avett first cut their teeth as musicians. Although siblings Scott (vocals, banjo) and Seth (vocals, guitar) began making music together as children, their group's genesis began when they were members of Nemo, a rock band that gigged regularly in Greenville, North Carolina. Looking for another outlet for their musical ideas, the Avetts began getting together with like...