Amvis balances ambition and a bit of disparagement on his new jaunty joint, “Streets”. A sedate and comparatively amusing slow-burner that sounds like a whole life-story compressed into a couple of minutes. The song is a conversation (in the literal sense) about how it is not uncommon to lose sight of one’s aspirations. But more precisely, Streets is about how Amvis digressed from his original plan for his life. And…