Basically this song is very simple
it's just the same thing repeated over and over
Here are all the chords used

 Em (022000@1)B7 (x21202@1)G (320003@1)D (xx0232@1)Am-0---2---3--2--0-------------------------------------------------------- (x02210@1)-0---0---3--3--1--------------------------------------------------------
-0---2---0--2--2--------------------------------------------------------
-2---1---0--0--2--------------------------------------------------------
-2---2---2-----0-------------------------------------------------------
-0---0---3------------------------------------------------------------


Em (022000@1)                                                B7 (x21202@1)     
cold blows the wind over my true love cold blows the drops of rain 

Em (022000@1)                                          B7 (x21202@1)     Em (022000@1)    
I never had but one true love and in camville he was slain

     G (320003@1)     D (xx0232@1)    Am (x02210@1)             G (320003@1)  Em (022000@1)      D (xx0232@1)I'll do as much for my true love as any young girl may

     Em (022000@1)              D (xx0232@1)               Em (022000@1)          B7 (x21202@1)
I'll sit and weep down by his grave for twelve months and one day 


And thats it just keep playing the same rhythm