Founded in Boston, Isis has been highly influential in the ambient doom-metal scene. The band's slow-moving motifs have become more progressive in recent years, culminating in Isis' fifth and final album, Wavering Radiant. (The band is breaking up after its current tour.) Like its predecessors, Wavering Radiant is a thematic work, in this case dealing with supernatural planes of existence. Listen to one of the group's last shows, as it plays the Bonnaroo Music Festival in Manchester, Tenn.