Song: Requiem (The Fifth)
Artist: Trans-Siberian Orchestra
Album: Beethoven's Last Night

Time: 4/4
Tempo: 140 (I'm not 100% sure. You can experiment with the tempo.)
Tuning: Drop D (Not needed, but Drop D makes the Rhythm arrangement easier.)

*UPDATES*
Original Version: Only contained fret numbers and very unorganized.
Ver. 2.0: Greatly cleaned up the tab, assigned rhythms to fret numbers.
Ver. 2.1: Added misc. details (i.e. Song/Artist/Album; Time/Tempo; etc.).
Ver. 2.2: Went through a final time and ripped out anything unneeded.
Ver. 2.3: Added time 'n'-time 'n' for sections
Ver. 2.4: Fully completed. Every detail put in its correct place.
Gtr I (D A D G B e) - Lead
Gtr II (D A D G B e) - Rhythm
======================================================
        INTRO RIFF (Tempo/Time: Freely;4/4) *0.00-0.10**2.31-End*
======================================================
  --3--                       --3--
  Q Q Q  H  (*)               Q Q Q    H (*)
|--------------------------------------------------|
|--------------------------------------------------|
|-12-12-12-------------------10-10-10--------------|
|----------13~-------------------------12~---------|
|--------------------------------------------------|
|--------------------------------------------------|
| --3--                       --3--
| Q Q Q  H  (*)               Q Q Q  H  (*)
|------------------------------------------------|
|------------------------------------------------|
|------------------------------------2~----------|
|--------1~--------------------------0~----------|
|-5-5-5--1~-------------------3-3-3--0~----------|
|-5-5-5-----------------------3-3-3--------------|
======================================================
        MAIN RIFF (Tempo/Time: 140;4/4) *0.10-0.28**0.40-1.05**2.00-2.12*
======================================================
                                                                    &&&
                    E E E E E  E  E  E    W      H  E  E  E  E   W   W
|-----------------|---------------------|-----|---------------|----|---|
|-----------------|---(End of 4th time)-|-----|(End of 5th)---|----|---|
|-----------------|-----------12-12-12--|-----|-------10-10-10|----|---|
|-----------------|---------------------|-13~-|--L------------|-12-|-L-|
|-----------------|---------------------|-----|---------------|----|---|
|-----------------|---------------------|-----|---------------|----|---|
|
| E E E E E E E E   E E E E E E E E
|PM...............................
|-----------------|------------------|
|-----------------|------------------|
|-----------------|------------------|  x6
|-----------3-----|-5-3-------3------|
|-3-5-6-5-6---6-5-|-----6-5-6--6-5---|
|-----------------|------------------|

=======================================================
        CHORUS RIFF (Tempo/Time: No Change) *0.28-0.40**2.12-2.30*
=======================================================
  Q. E^E Q.^^ E  E  Q  Q  Q  ^^ H   H   E E E E  E E  E E
|----------|-----------------|--------|--------------------|
|----------|-----------------|--------|-8-9-8--------------|
|-----0--7-|-(7)-0--8--0--10-|-(10)-0-|-------10-8-10-8-7--|
|-10-------|-----------------|--------|--------------------|
|----------|-----------------|--------|--------------------|
|----------|-----------------|--------|--------------------|
|
| Q. E^E Q.^^ E  E  Q  Q  Q  ^^ H   H   E E E E E E E E
|----------|-----------------|--------|------------------|
|----------|-----------------|--------|------------------|
|----------|-----------------|--------|------------------|
|----------|-----------------|--------|-5-6-5------------|
|-3------5-|-(5)----6-----8--|-(8)----|-------8-6-8-6-5--|
|-----5----|-----5-----5-----|------5-|------------------|

==========================================================
        ADDED SECTION (Tempo/Time: No Change)
==========================================================
*THIS IS PLACED ON THE TAIL END OF THE MAIN RIFF*
(&&& indicates where this is played)
   H   H    W
|--------|----|
|--------|----|
|--------|----|
|-13--12-|-10-|
|--------|----|
|--------|----|

===========================================================
        OPERATIC SLIDE RIFF (Tempo/Time: No Change) *1.05-1.59
===========================================================
           *Two Guitars arr. for Lead*
  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|------------------------|
|------------------------|------------------------|
|------------------------|------------------------|
|-10/13-13-13-13\10-10-10|-10/13-13-13-13\10-10-10|
|------------------------|------------------------|
|--8/11-11-11-11\8---8--8|--8/11-11-11-11\8---8--8|

  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|------------------------|
|------------------------|------------------------|
|------------------------|------------------------|
|-12/15-15-15-15\12-12-12|-12/15-15-15-15\12-12-12|
|------------------------|------------------------|
|-10/13-13-13-13\10-10-10|-10/13-13-13-13\10-10-10|

  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|------------------------|
|------------------------|------------------------|
|------------------------|------------------------|
|-13/17-17-17-17\13-13-13|-13/17-17-17-17\13-13-13|
|------------------------|------------------------|
|-11/15-15-15-15\11-11-11|-11/15-15-15-15\11-11-11|

  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|------------------------|
|------------------------|------------------------|
|-10/13-13-13-13\10-10-10|-10/13-13-13-13\10-10-10|
|------------------------|------------------------|
|--8/11-11-11-11\8---8--8|--8/11-11-11-11\8---8--8|
|------------------------|------------------------|

  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|----------------------------|
|------------------------|----------------------------|
|-12/19-19-19-19\12-12-12|-12/20-20-20-20\12--12-12---|
|------------------------|----------------------------|
|-10/17-17-17-17\10-10-10|-10/18-18-18-16\10--10-10---|
|------------------------|----------------------------|
  E  E  E  E  E  E  E  E
|------------------------|
|------------------------|    *CHORUS BEGINS
|-12/19-19-19-19\12-12-12|  SINGING; GUITAR TACET*
|------------------------|
|-10/17-17-17-17\10-10-10|
|------------------------|
*GUITAR RESUMES; CHORUS TACET*
  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|------------------------|
|------------------------|------------------------|   *CHORUS RESUMES;
|------------------------|------------------------|      GUITAR TACET*
|-10/13-13-13-13\10-10-10|-10/13-13-13-13\10-10-10|
|------------------------|------------------------|
|--8/11-11-11-11\8---8--8|--8/11-11-11-11\8---8--8|
  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|------------------------|
|------------------------|------------------------|
|------------------------|------------------------|
|-10/13-13-13-13\10-10-10|-10/13-13-13-13\10-10-10|
|------------------------|------------------------|
|--8/11-11-11-11\8---8--8|--8/11-11-11-11\8---8--8|

  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|------------------------|
|------------------------|------------------------|
|------------------------|------------------------|
|-12/15-15-15-15\12-12-12|-12/15-15-15-15\12-12-12|
|------------------------|------------------------|
|--8/11-11-11-11\8---8--8|--8/11-11-11-11\8---8--8|

  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|------------------------|
|------------------------|------------------------|
|------------------------|------------------------|
|-13/17-17-17-17\13-13-13|-13/17-17-17-17\13-13-13|
|------------------------|------------------------|
|-11/15-15-15-15\11-11-11|-11/15-15-15-15\11-11-11|

  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|------------------------|
|------------------------|------------------------|
|-10/13-13-13-13\10-10-10|-10/13-13-13-13\10-10-10|
|------------------------|------------------------|
|--8/11-11-11-11\8---8--8|--8/11-11-11-11\8---8--8|
|------------------------|------------------------|

  E  E  E  E  E  E  E  E   E  E  E  E  E  E  E  E
|------------------------|--------------------------|
|------------------------|--------------------------|
|-12/19-19-19-19\12-12-12|-12/20-20-20-20\12--12-12-|
|------------------------|--------------------------|
|-10/17-17-17-17\10-10-10|-10/18-18-18-16\10--10-10-|
|------------------------|--------------------------|
  E  E  E  E  E  E  E  E
|------------------------|
|------------------------|
|-12/19-19-19-19\12-12-12|
|------------------------|
|-10/17-17-17-17\10-10-10|
|------------------------|

Those're the Riffs/Rhythm Figures you'll need to know.
This is the order you play them:
================================
--Intro Riff - x1
--Main Riff (w/o Added Section) - Rhythm: x6;; Lead - x1
--Chorus Riff - x2
--Main Riff (w/ Added Section both times) - Rhythm: x12;; Lead - x2 (Skip last note in 
Section 2nd time)
--Operatic Slide Riff - x1
--Main Riff (w/ Added Section) - Rhythm: x6;; Lead - x1 (Skip last note in Added Section)
--Chorus Riff - x2 (Play last measure a 3rd time while rit.)
--Intro Riff - x1 (Sustain final note much longer; Lead moves down to 10th fret; 
Strike chord again)

TABULATURE LEGEND
==================
E - Eighth note (1/2 beat)
Q - Quarter note (1 beat)
Q. - Dotted Quarter note (1 1/2 beats)
H - Half note (2 beats)
W - Whole note (4 beats)
L - Sustain note
n^n - Off-beat sustain (note starts on a 1/2 and sustains to another 1/2)
n^^n - Sustain note for 'n' duration across barline for 'n' duration.
(*) - Fermata (Sustain freely)
/\ - Slide up or down (n/n, n\n)
(n) - Ghost note (Usually a note held across a barline; Used with 'n^^n')
rit. (ritard/ritardando) - Gradually slow down

That's it.... I apologize if it's hard to understand.
It's a simple song for beginners, and a favorite of mine....
Also, I wish to assure you, this WAS NOT taken from a tab book or another site. 
Regardless of it's details, this was all of my work.
So please don't comment saying that it's plagiarized.