Hallelujah

Hallelujah by Jeff Buckley, a cover of the song by Leonard Cohen,
is the same as the cover by Rufus Wainwright
(speaking specifically of the tune sung...)
and those tabs can found on this awsome HarpTabs website:

http://www.harptabs.com/song.php?Name=Hallelujah%20(Leonard%20Cohen%20Cover)
&
http://www.harptabs.com/song.php?Name=Hallelujah%20PART%20TWO

the main variation comes at the very end of the song - Jeff Buckley ends with the following after the last verse:

 5  6  -6 -6   -6  6  5   5 
Hal-le-lu-jah, Hal-le-lu-jah, 
 5  6  -6 -6   -6  6  5  -4 4 -4 
Hal-le-lu-jah, Hal-le-lu------jah, 
 5  6  -6 -6   -6  6  5   5 
Hal-le-lu-jah, Hal-le-lu-jah, 
 5  6  -6 -6   -6  6  5  -4 4 -4 
Hal-le-lu-jah, Hal-le-lu------jah
 8  -8 -8 -8    8  -8 -8(7)(-6) -6
Hal-le-lu-jah, Hal-le----lu-----jah, 
 8  8   -9(8)(-8)(7)  7    
Hal-le-------lu------jah, 
7  -6(6)(6)8                               -8  (7)(-6) -6
Hal--le--lu--------------------------------------------jah,
 7  -8 8          (-8)(7) 7
Hal-le-lu----------------jah