It’s round 3 of “Eye on the Cast,” this time for Faust. I wrote about bass David Pittsinger earlier in the year, during his first run on Broadway in the Tony-winning revival of South Pacific. Now he’s at it again, taking the Broadway stage as Emile De Becque until April 12. You can read more about Pittsinger and his decision to give up a gig at the Met for South Pacific in this recent Hartford Courant feature. After Pittsinger sings Mephistopheles in Faust with Madison Opera in May, he’ll head back to Broadway, but not surprisingly the Met has come calling again: next season he’ll make appearances in Alban Burg’s Lulu and Mozart’s The Magic Flute at the famed New York institution.