Christmas is coming and Liceu, like many other theatres, has decided once again to offer an attractive programme for the non-specialised audiences, who on these festive dates decide, perhaps for the only time in the season, to go for one night at the opera. On this occasion, the offer has consisted in the traditional double act integrated by Cavalleria rusticana and Pagliacci, the famous pair of short verismo operas, which tradition has transformed into an unbreakable matrimony. In...