Frogman, I noticed all the comments were made by musicians. When I went to see "Trane" live, the professional musician at the table was the only person out of five who knew exactly what Trane was doing, when according to the rest of us he went to the seventh galaxy. (that musician is still with us and performing)
Absolutely nothing against the greatness of "John Coletrane", but it has been stated by those of us who are not musicians, that "Trane" had a tendency to "experiment", travel to unknown galaxies during his performances. I didn't understand it then, and I wouldn't understand it now; when musicians travel to parts unknown, it's a musician thing.
I'm listening to pilgrimage now, and it isn't inaccessible, it's quite listenable. While I liked all of those musicians, Herby Hancock might be the only one who never lost me; (not referring to this record, but down through the years) "Pilgrimage" is a record I'll have to get. When ever the music gets anywhere near what was referred to as "free blowing" or "loft jazz" I was lost. There is a slim line between improvisation, and too far out; when the musicians speed is faster than his ideas, that's when one of us is lost.
Sometime the links require a degree of listening that I don't give them; that means I should listen to them at a better time.