Much of the material at the Vortex was drawn from the pair’s Transylvanian Concert, recorded two years ago and recently issued on ECM. Shades of Monk and early Jarrett could be heard on a furiously-swinging, off-kilter Not That Kind Of Blues, and later pieces containing audacious harmonies and unresolved cadences brought to mind both Béla Bartók and Annette Peacock . . .