The Grammy nominations have been announced. Here are the vocal performances nominated: The Best Opera Recording nominees are Heggie’s “Intelligence” (Kwamé Ryan, Jamie Barton, J’Nai Bridges & Janai Brugger; Blanton Alspaugh, producer), Huang Ruo’s “An American Soldier” (Carolyn Kuan, conductor; Hannah Cho, Alex DeSocio, Nina Yoshida Nelsen & Brian Vu; Adam Abeshouse, Silas Brown & Doron Schachter, producers), Kouyoumdjian’s “Adoration” {…}