I find it sounds better and is easier in C.
If your having trouble Youtube "The Scotsman Irish Rovers" or msg me and ill try help.

  C                  F             G               C
A SCOTSMAN CLAD IN A KILT LEFT THE BAR ONE EVENING FAIR
    C                 F                  C                   G
AND ONE COULD TELL BY HOW HE WALKED HE'D DRUNK MORE THAN HIS SHARE
   F                             C               G
HE STUMBLED ON UNTIL HE COULD NO LONGER KEEP HIS FEET
        C         G     C      F        G                C
THEN HE STAGGERED OFF INTO THE GRASS TO SLEEP BESIDE THE STREET
F                                C                G
RING DING DEEDLE DEEDLE DI-DE-O, RING DI DEEDLE O DEE
        C         G     C      F        G                C
HE STUMBLED OFF INTO THE GRASS TO SLEEP BESIDE THE STREET
C                  F             G               C
LATER ON TWO YOUNG AND LOVELY GIRLS JUST HAPPENED BY
    C                 F                  C                   G
AND ONE SAYS TO THE OTHER WITH A TWINKLE IN HER EYE
F                                C                G
"YOU SEE YON SLEEPING SCOTSMAN - SO STRONG AND HANDSOME BUILT
        C         G     C      F        G                C
I WONDER IF IT'S TRUE WHAT THEY DON'T WEAR BENEATH THE KILT?"
F                                C                G
RING DING DEEDLE DEEDLE DI-DE-O, RING DI DEEDLE O DEE
        C         G     C      F        G                C
"I WONDER IF IT'S TRUE WHAT THEY DON'T WEAR BENEATH THE KILT?"
C                  F             G               C
THEY CREPT UP TO THE SLEEPING SCOTSMAN QUIET AS COULD BE
    C                 F                  C                   G
LIFTED UP HIS KILT ABOVE THE WAIST SO THEY COULD SEE
F                                C                G
AND THERE BEHOLD FOR THEM TO VIEW BENEATH HIS SCOTTISH SKIRT
        C         G     C      F        G                C
WAS NOTHING BUT WHAT GOD HAD GRACED HIM WITH UPON HIS BIRTH
F                                C                G
RING DING DEEDLE DEEDLE DI-DE-O, RING DI DEEDLE O DEE
        C         G     C      F        G                C
WAS NOTHING BUT WHAT GOD HAD GRACED HIM WITH UPON HIS BIRTH
C                  F             G               C
THEY MARVELED FOR A MOMENT THEN ONE SAID "WE'D BEST BE GONE,
    C                 F                  C                   G
BUT LET'S LEAVE A PRESENT FOR OUR FRIEND BEFORE WE MOVE ALONG"
F                                C                G
SO AS A GIFT THEY LEFT A BLUE SILK RIBBON - TIED INTO A BOW
        C         G     C      F        G                C
AROUND THE BONNIE STAR OF THE SCOT'S KILT-LIFTING SHOW
F                                C                G
RING DING DEEDLE DEEDLE DI-DE-O, RING DI DEEDLE O DEE
        C         G     C      F        G                C
AROUND THE BONNIE STAR OF THE SCOT'S KILT-LIFTING SHOW
C                  F             G               C
THE SCOTSMAN WOKE TO NATURE'S CALL AND STUMBLED TOWARD THE TREES
    C                 F                  C                   G
BEHIND A BUSH HE LIFTS HIS KILT AND HE GAWKS AT WHAT HE SEES
F                                C                G
THEN IN A STARTLED VOICE HE SAYS TO WHAT'S BEFORE HIS EYES
        C         G     C      F        G                C
"MY FRIEND, I DON'T KNOW WHERE YOU BEEN, BUT I SEE YOU WON FIRST PRIZE
F                                C                G
RING DING DEEDLE DEEDLE DI-DE-O, RING DI DEEDLE O DEE
        C         G     C      F        G                C
"MY FRIEND, I DON'T KNOW WHERE YOU BEEN, BUT I SEE YOU WON FIRST PRIZE.