Not at all...
This is much more an ELP outing than a performance by Glenn.
Having said that, his vocals are just amazing, especially on Tarkus. So if you track this one down, I highly recommend it.
A year or two ago there was supposed to be an official release of the San Francisco date, but neither Keith Emerson or Glenn have managed to pull it off so far.
You can get a taste of what this sounds like by taking a listen to the clips we have in the Live Memorabilia section under the 1998 Emerson/Bonilla pages. You'll need the Real Audio Player to hear them.