“It’s easy to feel alone, especially in a world that moves so quickly. It’s a devastating feeling, one that you can’t assuage with drugs or material things. Isolation is something you need to tackle head-on, to embrace the despair and figure out its cause. On “Cranes in the Sky,” one of several standouts from Solange’s new album, A Seat at the Table, it seems she’s working out those issues, running”