Not-so-simple gifts
Whitney V. Hunter in Angel Reapers.Angel Reapers, the new meditation on the Shakers by choreographer Martha Clarke, playwright Alfred Uhry, and music director Arthur Solari (through this weekend at ArtsEmerson), opens with a transcendent theatrical coup: a religious community gathers onstage (men and women separate but facing each other), and then gently begins to giggle. The giggles turn to laughter, then guff…