Naveen Kumar If there is a megawatt star in “New York, New York,” the new musical from Broadway titans John Kander and the late Fred Ebb (with additional lyrics by Lin-Manuel Miranda), it’s right there in the title. Aside from the occasional f-bomb and pantomimed scurry of rats, the show that opened at Broadway’s St. James Theatre is a love letter to Manhattan so unabashed that its vibe might be best expressed in cityscape and heart-eye emojis. Cynical? These New Yorkers? Fuhgeddaboudit! Though inspired by the 1977 film directed by Martin Scorsese and starring Robert De Niro and Liza Minnelli, “New York, New York” is more accurately described as a musical-length rhapsody on the dreams crooned out in its title song, made famous by Frank Sinatra and naturally performed here as a big-band finale turned audience singalong. A crowded cast of characters has come to chase their dreams, and most of them want to be musicians.