This helps make you better at switching frets

      X4         X4       X4
E|-1-------1------------------------|
B|--2-----2---1-------1-------------|
G|---3---3-----2-----2--1-------1---|
D|----4-4-------3---3----2-----2----|
A|---------------4-4------3---3-----|
E|-------------------------4-4------|
 |    X4         X4        X4       |            
E|-4-------4------------------------|
B|--3-----3--4-------4--------------|
G|---2---2----3-----3--4-------4----|
D|----1-1------2---2----3-----3-----|
A|--------------1-1------2---2------|
E|------------------------1-1-------|

THis will take alot of practicing 
to get good at it but if you try you 
can do it.