You can change the font to courier ("typewriter") directly in your mudcat post, using the HTML code "double-T" for "typewriter font." Voila:

INTRO:
   C    F    Am    G Am F               Em          Dm C
e||-------------------------------------------------------------
B||-5---10----13---12-13--10-10---10-10---8--8---8-8--6---5-5-3-
G||-0----0-----0----0--0---0--0----0--0---0--0---0-0--0---0-0-0-
D||-------------------------------------------------------------
A||-3----8----12---10-12---8--8----8--8---7--7---7-7--5---3-3-2-
E||-------------------------------------------------------------

    G C Am7    G G Am7 G G G G   
e|---------------------------------------
B|--3--5---1---1-p0--0--1---3-3--3-3-----
G|--0--0---0---0-----0--0---0-0--0-0--0-0
D|-------------------0--0----------------
A|--2--3---0---0------------2-2--2-2-----
E|-------------------3--3----------------

To start displaying type in the monospaced font, type in the command as "[bracket]tt[close-bracket]" and go back to normal font by typing in "[bracket]/tt[close-bracket]" ~ where "[bracket]" is typed as the lesser-than sign (shift-comma) and "[close-bracket]" is the greater-than sign (shift/period).

Anyway: Seeing as how your tab shows you playing only two strings on the guitar, one of which a drone (never fretted), doesn't it look suspiciously like music that's really being played on a dulcimer?