Dm     Am     C      Dm

E|----1------0------0------1------|
B|----3------1------1------3------|
G|----2------2------0------2------|
D|----0------2------2------0------|
A|-----------0------3-------------|
E|--------------------------------|

I also incorporate this bass riff.

E|------------------------------------------------|
B|------------------------------------------------|
G|----------2--------------------------------2----|
D|----0--3-------------2----------0----0--3-------|
A|---------------0--3----------2------------------|
E|--------------------------3---------------------|


I don't own a Charango (yet!) and making your guitar sound exacty 
like one is difficult. For this song I tried tuning my guitar as follows
D# G# C# F A# F then placinag a capo on the 11th fret. The 6th string
(lowest) isn't played and with the capo in place leaves the remaing five 
strings tuned as shown below. 


     Dm       Am     C      Dm

E|----1-------0------0------1------|
B|----0-------0------3------0------|
G|----1-------0------0------1------|
D|----2-------0------0------2------|
A|----2-------2-------------2------|