“Who AM I?” Perhaps the greatest rhetorical question of all. It is something that many of us have pondered in moments in which our minds are left to wander a plane that is much bigger than us. We think about it when we think of where we fit and how we fit and many of us may have thought about it more in the last four years than any other time in our lives. Mother Hips co-frontman, Greg Loiacono has no answer, but his new single, “Seed,” available for streaming today on all digital outlets, is a soundtrack. “Seed” revisits Loiacono’s specific brand of psychedelia. And it is time for that. His last album was beautifully soft and thoughtful, marrying gentle, soaring vocals to wooden instruments and understated drums. “Seed” announces a counterpoint and is the other side of Loiacono’s coin.