After clearing the vaults with their previous album, “Song Cyclops Volume Two,” Doleful Lions return with a new lineup, direction, and wisdom. Their new album, “7” represents the next step in the evolution of Doleful Lions, marrying their keen, classic pop sensibilities with an adventurous new sound. The usual folksy guitar strummings of their previous releases have been replaced with an eclectic mix of electronics, epic song structures, and a focused lyrical intensity. Instead of striving for uniformity, “7” allows the Lions to give each song its own unique sound.