I'm not sure about the tuning, but I prefer use standard tuning
riff 1:
e|-------------------------------------------------------------|
b|-------------------------------------------------------------|
g|-------------------------------------------------------------|
d|-2--2--2-2--2-2-2--3--2--------------------------------------|
a|-2--2--2-2--2-2-2-----2--------------------------------------|
e|-0--0--0-0--0-0-0-----0--------------------------------------|
* * * * * *
riff 2:
e|----------------------------| |------------------------------|
b|----------------------------| |------------------------------|
g|----------------------------| |------------------------------|
d|-7--7--7-7--7-7--8-5-7------| |-7--5--4--3--2----------------|
a|-7--7--7-7--7-7--8-5-7------| |-7--5--4--3--2----------------|
e|-5--5--5-5--5-5--6-3-5------| |-5--3--2--1--0----------------|
* * * * * * *
riff 3:
e|-------------------------------------------------------------|
b|-------------------------------------------------------------|
g|-------------------------------------------------------------|
d|-------------------------------------------------------------|
a|-------------------------------------------------------------|
e|-0--13-12-13-12----0-13-12-0-13-0-15-------------------------|