Comprised of virtuosic sisters Sarah, Hannah, Eva, and Liza Holbrook, Colorado-based indie folk quartet SHEL (an acronym of their first names) cast a unique spell, weaving together folk, rock, Celtic, pop, and just about anything else from their kitchen sink of influences. Their creative talents were nurtured from a young age by their mother, an artist, and father, singer/songwriter Andrew Holbrook. Prior to branching out on their own in 2005, the sisters were part of a family band with their father. Though each sister is a consummate multi-instrumentalist, their primary setup...