Gabriele,
OK, I dug out the CD in an attempt to jog my memory... It was nice working at Capitol for these mostly live dates, still one of the greatest studio. Chad's writing, especially early on was done on a sequencer and although he does play mallet percussion he admits to not being a keyboard player. So the charts were pretty basic, just forms and patterns, and we were all encouraged to add whatever we felt.
For instance, the bass part for the opening tune showed only the C pedal figure for the A-section and any passing or connecting bits were my additions. Make sense? Melodies were all written but solos were not.
Furthermore, any track listing me as co-composer were group ad libs. This has become somewhat of a tradition with this band, at least one completely open thing per gig. And we usually try it when we're in the studio too because sometimes some really interesting things happen. Sometimes not... The Bozzio, Holdsworth, Levin, Mastelotto tour is is the ultimate extension of this, all ad libs, no songs at all.
Interesting description of my playing style. I've played a lot of guitar trio stuff in my career and early on I decided that it was not my job to spell out all the tonality but to stay down and play the bass notes. Just my choice. (Carp's knowledge of chords was so deep that it allowed him to sometimes do both!) For example, when Allan is soloing I think he does a fine job of spelling out the tonality - if I stay on the bottom it gives him additional freedom to move through and around the harmony. Sometimes having the chords sounded, as when we had a keyboard player, makes it easier for the audience to hear what's happening. But with the trio I think our brains can fill in what's missing and my preference is to be down low - between the drums and the harmony!
Just my spin on it.
Cheers!
Jimmy J