For the verse:
G Bm C
She's a jar with a heavy lid, my pop kid quiz....
(it keeps that pattern the entire way through)
for the chorus:
G Am Bm B7
Just climb aboard, the tracks of the trains are
Em Bm Bm-Bbm-Am
Through my fragile family tree
[ Tab from: https://www.guitartabs.cc/tabs/w/wilco/shes_a_jar_crd.html ]
Am F#dim
watch me floating inches above the people underneath.
If you're not as competent at the harmonica as Jeff is, here is the tab for the solo
E ------3-----------------------------------------------------------|
B ----------3-----0-------------------------------------------------|
G -------------------0------2-------4-------------------------------|
D ------------------------------------------------------------------|
A ------------------------------------------------------------------|
E ------------------------------------------------------------------|