This is simple arithmetic. Even with a wooden leading man, Lakme gets by on the exoticism of its Indian setting and the decadent (but tuneful!) complexities of Leo Delibes's one great opera — the silly libretto of which makes a lot of opera people dismiss the whole thing. But those people are wrong, as they would have learned if they'd seen and heard Leah Partridge in the title role at FGO. Even if she got a tidbit screechy at the end of "The Bell Song," her voice — fresh and supple as a sapling — brought a sweetness and, later, a solemnity to the role that few singers have done. Everything about this Lakme, from its sets to its bevy of talents, was oversize and overwhelming — a reminder of why it's called grand opera.