every tab on this site is wrong for heart shaped box. some are nearly right,
but not quite. i know this is correct, because it is the tab book version.
here goes...

1/2 a step down tuning

verses

eb-------------------------------------------------------------------
bb-------------------------------------------------------------------
gb------2------------------------------2-----------------------------
db----2---2-----3--------0---0-------2---2------3------4-4-4-4-------
ab--0---------3---3----0---0---0---0----------3---3------------3-3---
Eb----------3--------0---------------------3---------0---------------

play that all the way through the verses, then,

choruses

eb----------------------------------------
bb----------------------------------------
gb--2-2---4^---2-2---4^-------------4^----
db--2-2--------2-2-------4-4-4-4----------
ab--0-0--------0-0---------------3--------
Eb---------------------------------------- 

play this as many times as needed, then

eb---------------------------------
bb---------------------------------
gb----------------------4^-4^-4^---
db--3-3-3-3-3-3-3-3-0--------------
ab--3-3-3-3-3-3-3-3-0--------------
Eb--3-3-3-3-3-3-3-3-0--------------
             (your adviiiicccceee) 

solo

eb-------------------------------
bb-----6^----4^-----5^5-3-1-0----
gb-------------------------------
db--7-----5-----3----------------
ab-------------------------------
Eb------------------------------- x2

then

eb---------------------
bb---------------------
gb------------------2--
db--2------------------
ab---------------------
Eb---------------------

the ending is just

eb----------------
bb----------------
gb----------------
db--4-4-4-4-------
ab----------3-3---
Eb----------------

the song order is

verse
chorus
verse
chorus
solo
verse
chorus
ending

this is probably the only really hard song by nirvana. respect

adj.