On their 16th studio album, Indigo Girls tell their origin story. Look Long is a stirring and eclectic collection of songs that finds the duo of Amy Ray and Emily Saliers reunited with their strongest backing band to date as they chronicle their personal upbringings with more specificity and focus than they have on any previous song-cycle. “We’re fallible creatures shaped by the physics of life,” says Saliers. “We’re shaped by our past; what makes us who we are? And why?”