You're right! A true Overlooked/Ignored/Neglected candidate. All I have from the session is "Loose Bloos" on this 1970s twofer:
P.S. Obviously things have moved on since Orrin Keepnews wrote of the "Loose Bloos" track on the 1970s twofer:
"This, I'm afraid, is from a truly lost session .... things just didn't go too smoothly at this ... date, and it was put on the shelf. Later, Bill and engineer Ray Fowler began to do editing work; they put this selection into shape that Evans approved and got started on a second without stopping. They never did resume the project, and now I find that the rest of the tapes have totally vanished - leaving only "Loose Bloos" and a frustrating partial item that ends abruptly in the middle of a piano solo. My gut reaction was to get this one salvaged tune out into the world quickly, before it also disappeared."