Since they were last here in December 2007, nothing has happened in the Crosby, Stills and Nash world by way of a new album (their previous was 12 years ago) or solo releases.
But who goes to hear new songs by CS&N?
Yet among the many unexpected delights of this concert - their first on a world tour - were an excellent new piece by David Crosby (Radio, using the metaphor of a rescue at sea for more universal meaning) and a brittle Almost Gone by Graham Nash and keyboard player James Raymond (Crosby's son) about the imprisonment of whistle-blower Bradley Manning for allegedly passing secret memos to Wikileaks.
Even more surprising was a here-goes-nothin' airing of their famous Suite: Judy Blue Eyes which Crosby noted they hadn't played for about 20 years.
Yes, it was a bit ragged but the pleasure they took in it (Stills on guitar especially as the beatific Crosby beamed away) was a sheer delight.