bit of a stretch, Dave
(from memory)
you have to be talking about this:
Walk On's basic rhythm is D-A-G-Em
the chorus of Crumbs "You speak of signs and wonders......."
is Em-G-D-A
same 4 chords, different chord structures
the solo in Crumbs is played over the basic verse rhythm, which is G sliding up to A, with maybe a D thrown in there.
the solo in Walk On is played over Bm, G, Em, A
It is similar to the ear but actually different
That might not be 100% to the 'T' but the idea isn't changed.
(edit)
After a second look/listen, I think the outro to Walk On and the chorus to Crumbs are the same.
Em G D A
but that is only two segments of those songs.
So, I guess it might depend on how you look at it.
Those are very common chords anyways.
I think the solo is what sounds the most similar but I have never transcribed it, so I couldn't speak to the actual notes.
For the record, I like both songs, especially Walk On, which IMO is one of their 3 or 4 best songs since the end of PopMart.