BarcelonaThe Champions League anthem sounds like heavenly music again. Violins and butterflies in the stomach, with fans ready to fall in love every time Lewandowski celebrates a goal with his Hollywood actor laugh. In recent years the Champions League anthem sounded like the soundtrack to a horror movie, where you didn’t know if the hangman who would appear from inside a closet would speak German, French or Portuguese. Now this anthem is the sweet music that accompanies Barça’s return to the scene of the hardest traumas of recent seasons, that nightmare competition that kept children awake if they heard words like Roma or Liverpool. This is where you need to show that a page has been turned. It is in Europe where Barça must regain their pride and give their opponents nightmares.