I tabbed this by ear in a different key, if you want to play this specific tab in the
original key of the song, tune your mandolin a 1/2 step down (Gb,Db,Ab,Eb). 
It still sounds fine in proper mandolin tuning though.

-this chord is played in beginning and remains in the background throughout song

E||----5~---0~--------5~-----------||
A||----5~-------------5~---0~------||
D||----2~-------------2~-----------||
G||----2~-------------2~-----------||

(~ - let ring)

E||----------------2-0----------------------------------0-2---0-------||
A||--0--0-0--5---------5-4-5-2---4-0-5-2-4-0---5-2-4-5------5---0-----||
D||----------------------------5-------------5------------------------||
G||-------------------------------------------------------------------||       


E||----------------2-0-----------------------0-2-3-0------------------||			
A||--0--0-0--5---------5-4-5-2---4-0-5-2-4-5----------4-5-5-----------||
D||----------------------------5--------------------------------------||
G||-------------------------------------------------------------------||

The fiddle part not 100% sure on this:

E||--5-5-3-2-0-2-------0---5-----3-----2-2--3-5-7-7--3-0-5-------0---5-------||
A||--------------5-4-5-------5-5---5-5---------------------5-4-5---0---------||
D||--------------------------------------------------------------------7-7---||
G||--------------------------------------------------------------------------||