Here's a partial tab for "Infinite Sadness".
It mostly just plays on part of the song "MCIS".
Intro
E----0--0------X-3----2-------|
B----1--0------X-3----3-------|
G----0--0------X-0----2-------|
D----2--2------X-0----0-------|
A----3--3------X-2----0-------|
E----0--0------X-3----X-------|
Repeat Intro 4x. then:
E-----3---------|
B-----3---------|
G-----0---------|
D-----2---------|
A-----2---------|
E-----0---------|
Intro is then repeated a numerous amount of times.
There's a key change near the end, which I haven't
figured out yet.