I am not that objective about Magma. For one thing, when I saw them as a 16-year-old in the Seventies the intensity of the band caused me to have an out-of-body experience, something that has happened neither before or since. It’s the kind of thing you remember. It’s hard to formulate balanced critical opinions when you are floating up near the ceiling, looking down on your body. I met the leader and creative visionary behind the band, Christian Vander, a couple of weeks before last night’s Barbican concert, which was billed as a Celestial Mass. As someone more expressive than me put it, “Meeting Vander's gaze was like looking into the eyes of a super-intelligent Siberian husky."