In the actual song the guitars an bass are down tuned by a stage
to Eb,Ab,Db an Gb
Verse
G------------------
D------------------ x4
A--------------3330
E-0-0-5550-3-3-----
Chorus
G-----------------
D----------------- x4
A-----------------
E0-00-000-3-33-333
Verse
G------------------
D------------------ x4
A--------------3330
E-0-0-5550-3-3-----
[ Tab from: https://www.guitartabs.cc/tabs/n/nirvana/dumb_btab_ver_4.html ]
Chorus
G------------------
D------------------ x4
A------------------
E-0-00-000-3-33-333
Bridge
G-------------------
D------------------- x3
A-------------------
E-2-22-222-3-33-333-
Then on the 4th time
G--------------------
D-------------------- x1
A--------------------
E-2-22-222-3>let ring
Verse
G------------------
D------------------ x4
A--------------3330
E-0-0-5550-3-3-----
Chorus
G------------------
D------------------ x6
A------------------
E-0-00-000-3-33-333
