The audience at a concert by the Chicago Symphony Orchestra had an unprogrammed addition to their night’s entertainment — a fight between two concert-goers in a private box.

La Scala, Milan, one of the world’s most celebrated opera theatres, reopened to rousing applause from its demanding public yesterday after nearly three years of renovation.

Seven years after its beloved opera house burned down, Venice threw itself a big party today to celebrate the rebirth of La Fenice with a gala concert attended by the Italian president and Hollywood stars.