Black fans of electronic dance music say they love raves for the mentality of peace, love, unity, and respect. But they wish the scene were more diverse. Is the tide turning? In her forthcoming book, journalist Rosanna Xia explores how rising tides might inspire Californians to rethink their relationship with the sea. In “Time’s Mouth,” author Edan Lepucki follows three generations of Californians who’ve dealt with inherited trauma and more.