Brother Bird gives people-pleasing a room, a mirror, and a voice on “Chameleon,” a spellbinding indie folk reverie that channels shame, survival, and self-recognition into a soul-stirring first glimpse of her next chapter. In conversation with Atwood Magazine, Nashville singer/songwriter Caroline Glaser unpacks the freedom of writing through characters, the catharsis of this new era, and the long, complicated work of learning to conform a little less.