On your mark, get set, go! Wagnerites have been chomping at the bit for Lise Davidsen’s Isolde for what feels like forever. As if! The Norwegian phenomenon is all of 37 years old. But yes. It’s time. Davidsen’s compatriot Kirsten Flagstad was the same age when she quaffed her first fatal potion. (Birgit Nilsson, a Swede, beat them to the punch at age 35.) According to previous reports that were erroneous in the first place or have been superseded by subsequent developments, the Metropolitan Opera Tristan und Isolde that’s coming up in March was to have been Davidsen’s first. But no, before that there’s this out-of-town tryout in Barcelona—not that Europeans will see it that way, the Liceu having a certain status of its own. Clay Hilley, an American heldentenor particularly prized in Vienna is Davidsen’s Spanish Tristan. Bárbara Lluch is the director; Susanna Mälkki conducts. Camp followers, take note: subs Elena Pankratova and Bryan Register are scheduled for the performances of January 15 and 25. —Matthew Gurewitsch