@Guest (11:04 AM) Which version??? ... Because I enjoy analyzing, here's chords of three quite different guitar accompaniments from my library.

Waterson:Carthy (vocals: Norma, guitar: Martin) have a version that starts "As I was going to Bucklington Fair." Martin's chords, first verse only -- you transcribe the variations:

T:Rambleaway
N:As recorded by Waterson:Carthy on "Common Tongue"
M:3/4
L:1/4
Q:3/4=60
K:Gmaj
"G" d | B2 G/2G/2 | G F G | B c "C" d | e2 g/2g/2 | e d B | "G" d e d |
w:As I was a-go-ing to Buck-ling-ton Fair In his fine scar-let ja-cket and
B G G | G2 "C" z/2 d/2 | e2 f | "D" g a g | f d e | f2 z/2 f/2 |
w:ev-ry-thing rare E-nough to 'tice all the young girls that day When
f f f | "G" g f e | d B G | "C" (e d c) | "G" B G F | G2 z |
w:they set their eyes on young Ram-ble-a-way__ Ram-ble-a-way
"C" d d e | "G" B2 d | "C" e f e | "G" d B d | c B "D" A | "G" G2 ||
w:Ram-ble-a-way When they set their eyes on young Ram-ble-a-way

Here's Gordon Bok's, a different melody:

T:Ramble Away
N:As recorded by Gordon Bok on "A Rogue's Gallery of Songs for 12-String"
M:3/4
L:1/4
Q:3/4=48
K:F#min   
c | "F#m" c>c f | "A" e c B | A>B c | "Bm" B2 z | z2 A/2B/2
w:As I was a-wal-king down Bir-ming-ham Street In my
"A" c f f | e c B | "F#m" A B c | "Bm" B2 z | z2 z/2 B/2 |
w:new scar-let ja-cket all neat and com-plete The
"A" c c c | (c<B) A | "C#m" G G>F | G2 z | z2 c/2c/2
w:young girls all smiled_ as they passed me by Say-ing
"A" c2 c/2c/2 | c/2c/2 B "E" A | E F>G | "F#m" F3 | z2 ||
w:one to a-no-ther there goes Ram-ble-a-way

Pete Harris has much the same melody as Gordon Bok but an entirely different accompaniment:

T:Rambleaway
N:As recorded by Pete Harris on "The Widow's Promise"
M:3/4
L:1/4
Q:3/4=40
K:Dmin
"A" z/2 G/2 | "Dm" A>A "Am" d | "F" c<AG | "Bb" F>GA | "C" G z z2 | z2 z F/2G/2 |
w:As I was a-wal-king down Bir-ming-ham Street In my
"Dm" A A "Am" d | "F" c<A G | "Bb" FG>A | "C" G z z2 | z2 z z/2 G/2 |
w:new scar-let ja-cket so neat and com-plete The
"Dm" A>B A | "F" (A<F) z/2 D/2 | D "Bb" E>F | "A" E2 z2 | z2 z z/2 G/2 |
w:girls they all said_ as I passed them by Are
"Dm" A>A "Am" B | "F" A G A | "C" C D>E | "Dm" D2 z | "F" z3 | "C" z3 | "Dm" z3 | "Am" z3 | "A" z2 :|
w:you the young man they call Ram-ble-a-way?