Brown

E|-----------------------------------------------------------------|
B|-----------------------------------------------------------------|
G|-----------------------------------------------------------------|
D|-----------------------------------------------------------------|
A|-------------3--3--3--0---3-0--1------------3--3--3--0---3-0--5--|
E|---0--0---0-----------------------0--0---0-----------------------|
                                                
   PM-----------------------------------------------------------|               
                                                
E|--------------------------------------|

Riff B  (4 times)

E|-------------------------------------|
B|-------------------------------------|
G|-------------------------------------|
D|---0--0---5p3--------3--3---5--3--0--|
A|---0--0-------5p3p0--3--3---5--3--0--|
E|---0--0--------------3--3---5--3--0--|
                             
                             PM-----|
E|--------------------------------------|

Riff C (lots of harmonics, FUN TOO)

E|------------------------------------------------------------|
B|--------------------------------------------------------5---|
G|-----------------------------------------5------------5-----|
D|--3--3---5---5---3--3-----------0--0-------5---0--0---------|
A|--3--3-----5-----3--3---5---5---0--0---5-------0--0---------|
E|--3--3-----------3--3-----5-----0--0-----------0--0---------|
          * * *          * * *          * * *          * *
E|-------------------------------------|

Riff D