But I distinctly remember hearing some Gilmore solos on the original LP. And the AMG review (I know, I know ...) says "Gilmore's strong blowing complements Morgan very well". My memory may be getting a little rusty anymore, though, and I don't have a copy here to check.
Gilmore does solo on the CD re-issue. There are JG solos on the title track, "Waltz for Ruth," and at least one other number. Several tracks, however, are brief & have fades, which indicates that other solos may have been edited out.