Here's a blurb from Musician magazine, December 1987-
Joni Mitchell sez...
The Shadows & Light tour worked out fine, but it did not look like it was going to. Jaco was MD, & as MD he didn't show up until we'd already been in rehearsal for two weeks. And when he did show up he decided he didn't like the band. As we'd been rehearsing without a bass player, we'd kind of fleshed it in to where it sounded pretty good even without a bass. So when Jaco came, he started tearing the arrangements apart, demanding more space onstage. He later came to love everybody, but he didn't hear it that way initially. He didn't like Don Alias on drum kit. He liked him on hand drums. Well, I really liked the feel of Don's playing. He is not a technical virtuoso on the kit like he is on congas & other kinds of drums, where he's in the top three in the world, but he's such a good feeling kit player to me. So we had this big argument & it looked like this thing was not going to fly. But as the tour rolled along that tension dissolved. As a matter of fact, he took that band & played with them on his own record.
I think we played very well on that tour, especially, oddly enough, the day we filmed. Something personal had happened to him that day. I don't know what. Something between his wife & his mother, some family thing had gone down. He was in the midst of some tempering revelation. When we started, the first few notes he played were from "The High & Mighty". For a minute I thought, "I can't believe it! I watching Jaco having a humble attack! It's not really good for him to be this humble. Come on, Jaco, be a little arrogant"! Toward the end, he took off, but he used to jump over his amp & beat his Bass with his strap every night on that tour - this was the one night he didn't do it. It was a shame because Mike Brecker & I had cooked it up that when he jumped over the speakers & beat hos bass, Mike was going to jump out & beat his saxophone. We were going to have a real donnybrook up there. I thought, "Maybe I'll come out & beat the piano". And he didn't do it.