this song is awesome, extremely easy though......enjoy!!!
Tuning DGCF
F|-----------------------------|
C|-----7-----------------------|
G|-5-8---8-5-0-0-8-5--0-8-6-5--|
D|-----------------------------| x8
F|-----------------------------|
C|--------------333--333-------|
G|-22222-555-333---33---333----|
D|-----------------------------| x4
F|-----------------------------|
C|----32-------------------3---|
G|-222--5212------3235-3233----|
D|-----------------------------| x4
F|-----------------------------|
C|--------------333--333-------|
G|-22222-555-333---33---333----|
D|-----------------------------| x4
[ Tab from: https://www.guitartabs.cc/tabs/m/mastodon/workhorse_btab.html ]
F|-----------------------------|
C|----32-------------------3---|
G|-222--5212------3235-3233----|
D|-----------------------------| x4
F|----------------------------------------------------|
C|----------------------------------------------------|
G|-2-3-2-5-------2-3-2-5-------2-3-2-5-------2-5-3-2--|
D|--------(0)-(0)-------(0)-(0)-------(0)-(0)---------| x12
*only play () first four times*
F|-----------------------------|
C|--------------333--333-------|
G|-22222-555-333---33---333----|
D|-----------------------------| x2
F|-----------------------------|
C|----32-------------------3---|
G|-222--5212------3235-3233----|
D|-----------------------------| x2
F|-----------------------------|
C|-----7-----------------------|
G|-5-8---8-5-0-0-8-5--0-8-6-5--|
D|-----------------------------| x1
thats it, good luck!!!
MASTODON RULES!!!!