Empty Chairs no more?  It was illuminating, at intermission during the Metropolitan Opera’s opening-night presentation of Rossini’s “Barber of Seville” (last) Tuesday, to scroll through comments about the performance posted on Twitter.The presentation on December 17th was the latest in the Met’s line of family-friendly holiday offerings, abbreviated and translated into English for young listeners with short attention spans. The fans are “all-a-Twitter!”

“The Barber of Seville” Isabel Leonard and Rodion Pogossov star in this production at the Metropolitan Opera House. Photo: Andrea Mohin/The New York Times