Once, the B’way musical based on John Carney’s 2007 Ireland-shot film of the same name, won the Tony Award for Best Musical last night. It won seven other Tonys — Enda Walsh won for Best Book of a Musical, John Tiffany won for Best Direction and Steve Kazee won for Actor in a Leading Role in a Musical. Also: Bob Crowley for Scenic Design; Natasha Katz for Lighting Design; Clive Goodwin for Sound Design, and Martin Lowe for Best Orchestrations.