The bass section consists of two bass lines repeated throughout the entirety of
the song. It as as follows:
[ Tab from: https://www.guitartabs.cc/tabs/l/lcd_soundsystem/us_v_them_btab.html ]
Intro 0:06-2:03
G|-----------------------------------|
D|-----------------------------------|
A|--000-0-0-0-0-0-0-0-0-0-0-0-0-0-0--|
E|-----------------------------------|
Verse 2:15-8:29
G|--------------------------------|
D|-----7---55-7-----7---55-7------|
A|-0-0---0---0--0-0---0---0-------|
E|--------------------------------|
Pretty simple.
