Part 1 is in Drop D, with no distortion.
Part 2 is in Drop A, with distortion.
P=Pull off H=Hammer on
Part 1:
E|-------------------------|
B|-------------------------|
G|-------------------------|
D|--------4------------4---|
A|-----1------------0------|
D|--1------------0---------| *THIS IS REPEATED THROUGH-OUT THE 1st PART*
Lead guitar in Part 1:
E|-----------2---------------1------1---------|
B|-------------------------------------4------|
G|-----3---------------2----------------------|
D|--1-----1---------0-----0-------------------|
A|--------------------------------------------|
D|--------------------------------------------| x2
E|-----------2--4--6----6--7--6--4-----------1----1--------|
B|---------------------------------------------------4-----|
G|-----3-------------------------------2-------------------|
D|--1-----1-------------------------0-----0----------------|
A|---------------------------------------------------------|
D|---------------------------------------------------------|
E|-----------2-4-6-7-11--11-10-7-6---6-|
B|-------------------------------------|
G|-----3-------------------------------|
D|--1-----1----------------------------|
A|-------------------------------------|
D|-------------------------------------|
[ Tab from: https://www.guitartabs.cc/tabs/d/desolated/psalm_ii_tab.html ]
E|-18-18---18-18-------------------------------------------------|
B|---------------19---19-19-18---18-18-16---16-18-19-18h19p18-16-|
G|---------------------------------------------------------------|
D|---------------------------------------------------------------|
A|---------------------------------------------------------------|
D|---------------------------------------------------------------|
E|----------------------------------|
B|-16-15---15-15-12---12-12-11---11-|
G|----------------------------------|
D|----------------------------------|
A|----------------------------------|
D|----------------------------------|
E|---------------------------|
B|---------------------------|
G|---------------------------|
D|--1--3--4--3------4--3--0--|
A|---------------------------|
D|---------------------------|x4
Part 2:
B |-----------------------------|
F#|-----------------------------|
D |-----------------------------|
A |--1--3--4--3-----------------|
E |--1--3--4--3-----------------|
A |--1--3--4--3-----3h4p3--0----|
B |-------------------------------|
F#|-------------------------------|
D |-------------------------------|
A |--1--3--4--3----7--8-----------|
E |--1--3--4--3----5--6-----------|
A |--1--3--4--3-------------------| *PLAY THIS UNTIL THE END