“That was a beautiful and circular moment…” Lindsey Buckingham talking about Christine McVie coming back to the world of Fleetwood Mac in 2014 – after a 15 break from the band – and then the two of them working on a new album together. That album, Lindsey Buckingham/Christine McVie, was released to much acclaim last month. Now touring together as a duo and playing a fairly even mix of old and new, the pair put on an amazing performance at Ironstone Amphitheatre at Ironstone Vineyards on Friday night. Of all of the dozens of shows I’ve personally seen at the venue, this one might be my all-time favorite.