Two great big grand pianos head-to-head on a stage is an impressive sight. From above, their curves interlock in a yin-yang kind of way. Add two jazz musicians who have been exploring the infinite possibilities of what you can extract from those instruments for 50 or so years, and you had the makings of a cosmic experience.
And so it was with the return of Herbie Hancock - a regular visitor here in past years - with fellow traveller Chick Corea as part of a world tour which revives the men's past occasional partnership and intersections in their CVs.
Corea had taken over in 1968 from Hancock in the Miles Davis Quintet just as the trumpeter headed into jazz-rock fusion. Both established themselves as envelope-pushing giants of jazz in their own right. Hancock has embraced hip-hop along the way; Corea's fusion ventures led him to Latin forays and contemporary classical.
It was that vast shared legacy that got them a rapturous welcome from a Civic audience of a wide age range, and a standing ovation some 90 minutes later.