The guitar solo in "Eternity Road" has two different parts, separated in the left and right channels. The last four measures are something like this (I'll admit that I'm a bit unsure of the A in the last measure of the top line):
Usually, there's a glissando between the first two notes of each measure. In tablature, the parts are something like this:
Left-channel (top line):
B|-6~5-3---|---------|---------|---------|
G|-------5-|-4~2-0-2-|---------|---------|
D|---------|---------|-3~2-0---|-----2-0-|
A|---------|---------|-------3-|-0-3-----|
G|-------5-|-4~2-0-2-|---------|---------|
D|---------|---------|-3~2-0---|-----2-0-|
A|---------|---------|-------3-|-0-3-----|
Right-channel (bottom line):
B|---------|---------|-6~5-3---|---------|
G|-5~4-2-0-|---------|-------5-|-4~2-0-2-|
D|---------|-3~2---0-|---------|---------|
A|---------|-----3---|---------|---------|
The vocal melody in the verses of "Lovely to See You" is something like this:
Really, the similarity is one of rhythm, not so much of tonality. Each measure consists of an initial group of three eighth notes and then a longer note (starting on the "and" of the second beat) that lasts for the remainder of the measure (or, in the case of "Lovely to See You," for most of it; there need to be breaks for breathing). It's worth pointing out, though, that roughly the second measure in "Lovely to See You" (corresponding to the lyrics "For passing my way" in the first verse) is entirely conjunct, as are most of the phrases in this section of the solo in "Eternity Road."