The Silent Hill theme song is a great piece, and a real pickle to transcribe.
This song is broken into two sections- one lead, and one fill.
I have structured this tab so it's alternating Lead and Fill tabs.
The Lead has the same duration as its Fill counterparts, so the two tunes should
superimpose, kinda. If my Lead/Fill pairs aren't correct, just listen to the midi
file (www.geocities.com/xiao_ke_zhu/silenthill.mid) for reference.

LEAD: (not in synch) See original music for guide.
e----------------------------
b--5--4--3--4--5--4--3--4----
g----------------------------
D----------------------------
A----------------------------
E----------------------------

FILL: (all quavers!)
e-----0-----------0-----1-----0-------0----------0-----1-----0----
b-----------3-------------------------------3---------------------
g---2---2-----2-----2-----2-----2---2---2-----2----2-----2-----2--
D-2-------2-----2-----2-----2-----2-------2-----2----2-----2------
A-----------------------------------------------------------------
E-----------------------------------------------------------------

LEAD: (note intervals are estimates)
e------------------------------
b--6-------8--3----1-3-5-----4-
g------------------------------
D------------------------------
A------------------------------
E------------------------------

FILL:
e-----0---------0---------1--0-------0-----0----------------------
b---------3--------------------------------------4-----4-----4----
g---2-------2-----2-----2------2---2---2-----2-----2-----2--------
D-------3-----3-----3-3-----3----2-------1-----1-----1-----1---1--
A-0---------------------------------------------------------------
E-----------------------------------------------------------------

LEAD: play twice
e-----------------------------------------------------------
b--5-------------5-7--5-3-0---------5------------5-7--5-0-3-
g-----------------------------------------------------------
D-----------------------------------------------------------
A-----------------------------------------------------------
E-----------------------------------------------------------

FILL: play four times:
e-----2-----2-2-------2-------2------2-----2-2-------2-----2---2--
b-----------------------------------------------------------------
g---0---0-----------0---0---0---0---0--0-----------0---0----------
D-2-------2-----2-2-------2-------0------0-----0-0-------0---0----
A-----------------------------------------------------------------
E-----------------------------------------------------------------

LEAD:
e----------------------------------------
b--5--3--5--8--5--3-5-0----5--3--5--8--5-
g------------------------2---------------
D----------------------------------------
A----------------------------------------
E----------------------------------------

FILL: play three times:
e---------------------------------
b---1-3-----1-3-------0-------0---
g-0-----0-----------2-------2-----
D-----------------2-----2---------
A---------3-----3---------0-----0-
E---------------------------------

LEAD:
e----------------------------------------------
b-1------0--1--5-5-6-6-7-7-6-6-5-5-6-6-7-7-6-6-
g----------------------------------------------
D----------------------------------------------
A----------------------------------------------
E----------------------------------------------

FILL:
e---------------------------------
b-------------0---------------0---
g-----0-2-------2-----0-2-------2-
D---2-------2-------2-------2-----
A-2-------2-------2-------2-------
E---------------------------------

LEAD: "abc"
e-------------------------------------------------------
b-6--5--6--5--3--5--1----5----------6--10--8-6-1---5-3--
g----------------------2------3---2---------------------
D-------------------------------------------------------
A-------------------------------------------------------
E-------------------------------------------------------

FILL: play four times
e-----------------------------------
b-----3-------3-------3-------3-----
g---2---2---3---3---4---4---3---3---
D-0-------0-------0-------0-------0-
A-----------------------------------
E-----------------------------------

LEAD2: play "abc" again while another guitar plays the following
e-----10-------10----10--12-13-----13----13-15-12----12--12--13--12-10-
b--10-------10----10------------10----10-----------10--10--------------
g----------------------------------------------------------------------
D----------------------------------------------------------------------
A----------------------------------------------------------------------
E----------------------------------------------------------------------

LEAD2 continued:
e-----10---------10----10-12-13---13---13-15-12----12----13-----10-----
b--10---------10----10---------10---10----------10----12---------------
g----------------------------------------------------------------------
D----------------------------------------------------------------------
A----------------------------------------------------------------------
E----------------------------------------------------------------------

LEAD2 continued, again:
e-----13-12-10-10----13-12-10-10----13-12-13-15-12---13-12--10---------
b--10-------------10-------------10------------------------------------
g----------------------------------------------------------------------
D----------------------------------------------------------------------
A----------------------------------------------------------------------
E----------------------------------------------------------------------

FILL: repeat until "abc" ends
e-------1----------------1--------------0---0------------------
b---3-----3---3-------1------1------1--------------3---3---3---
g-----2-----2---2---2---2--2---2--2---2---2---2--2---2---2---2-
D-3---------------2-------------2---------------3--------------
A--------------------------------------------------------------
E--------------------------------------------------------------