The Tender BarJR Moehringer grew up listening for a voice, the voice of his missing father, a disc jockey who disappeared before JR spoke his first words. As a boy, JR would press his ear to a battered clock radio, straining to hear in that resonant voice the secrets of identity and masculinity. When the voice disappeared, JR found new voices in the bar on the corner. A grand old New York saloon, the bar was a sanctuary for all sorts of mencops and poets, actors