Review: Eta Creative Arts Foundation's staging of ‘Detroit '67’ examines conflict between two siblings amid backdrop of civil unrest

When the lights come up on the set of Dominique Morisseau’s “Detroit ’67,” now playing at eta Creative Arts Foundation, the first sound the audience hears is The Temptations’ 1966 hit “Ain’t Too Proud to Beg.” The song works on two levels: It inspired Morisseau’s Tony-nominated jukebox musical, “Ai...