Villavic

According to their website, There is no dress code at the Met. People dress more formally for Galas or openings of new productions, but this is optional. We recommend comfortable clothing appropriate for a professional setting.

I have tickets for La Traviata on April 6th. Though it's the first performance of this opera, there are previous productions on april and march (Manon, Macbeth, etc.). I'd understand this is not a premiere or an opening right? how do I know when is a gala or opening?

I'm planning to wear a blue blazer w/ shirt and no tie, is that acceptable? Or should I wear tie? My seats are in Orchestra road C.

Thanks