This is the tune Serena plays on the harp. Split into two parts for two guitars or a bass, I will tab the bass part later.
With a capo it's probably possible to play both on finger-style guitar. Listen to the song for the timing.

E-------5---5---------------6-5-6----------
B-----6---8---5-----5-------------8--6-8-5-
G-5-7-------------7------------------------
D---------------------7--------------------
A------------------------------------------
E------------------------------------------

E-----------------8-10-8-10----------------
B--------8-10-11------------11-10-8--------
G-7-9-10----------------------------10-----
D-------------------------------------------
A-------------------------------------------
E-------------------------------------------

E-12-10-12--8-------------------------------------
B--------------11-10-8----6-8-10-11------8--------
G------------------------------------9-10--10-----
D---------------------------------------------10--
A-------------------------------------------------
E-------------------------------------------------

E-----------------------------------------
B----------------8-10---------------------
G------5-7-9-10---------------------------
D--7-8------------------------------------
A-----------------------------------------
E------------------------------------------