The used vinyl copy of this that I found years ago contained a newspaper clipping from The Boston Globe dated Tuesday, June 30, 1981 reviewing Herbie's set at the Berklee Performance Center the night before. Here's an excerpt from the review.
One of the hindrances to enjoyment was that most basic problem: set length. Hancock's nine-song set lasted only 75 minutes and, at $13.50 a ticket, that doesn't rank high on the music-for-money scale. "I seriously thought it was intermission," said one disgruntled fan after the show. "A lof of people thought it was intermission."