Artist: I don't know
Song: Requiem For a Dream (Lux Aeterna)

I just want to note that this song is played with classical instruments but it's fun, anyway. Also, these are just the riffs. I forget the order....

G--------------
D-12----10--8--
A--------------
E--------------


G-10-9-----------
D--------12------
A-------------12-
E----------------


G-12--10--9-------
D--------------12-
A-----------------
E-----------------


G-10-10-7---10-7-10-7---10-7-10-7---10-7-10-7-10-7-10-7-10-7-
D------------------------------------------------------------
A------------------------------------------------------------
E------------------------------------------------------------


G-10-9---10-9-10-9---10-9-10-9---10-9-10-9-10-9-10-9-10-9-
D---------------------------------------------------------
A---------------------------------------------------------
E---------------------------------------------------------


G-1010-99-7-10101010-99-7-10101010-99-7--777-9999-101010-
D--------------------------------------------------------
A--------------------------------------------------------
E--------------------------------------------------------


G-7-------9---10------7-------10---9---
D--------------------------------------
A--------------------------------------
E--------------------------------------


Throw it all together and mix it up and you'll have it. Sorry if I messed it up. Enjoi!