For four sting bass standard tuning

riff1
G|----------------------------------------|
D|-----------------3----------------------|
A|---5----------------------1-------------|
E|----------------------------------------|

riff2
G|-----------------------------------------|
D|-----------------------------------------|
A|--------5-------------------1------------|
E|-----------------------------------------|

riff3
G|-----------------------------------------|
D|-----------------------------------------|
A|------5 pause----5 pause ----55555555----|
E|-----------------------------------------|

riff 1 x 8
riff 2 x 5
riff 1 x 10
riff 2 x 4
riff 1 x 12 last 4 with pauses
riff 3 x 1
riff 2 x 9
riff 1 x 4 hold last not and end

its not exact but you can work out the rythems