The flute wasn't the only instrument fueling legendary English rock band Jethro Tull. Guitarist Martin Barre was behind the riffs for more than four decades before the group broke up in 2014. Barre's playing style is rooted in blues, but includes an amalgam of other genres. Fittingly, his guitar technique on the most iconic of all Tull songs "Aqualung" uses barre chords. Barre and his band perform the classics, along with his own compositions and new songs from the forthcoming album, "Roads Less Traveled."