A Line Allows Progress A Circle Does Not

E|---------------------------------------------------------------------------------|  
B|-------3---------3--------3-------3----------------------------------------------|  
G|-----3--3------3--3-----3--3----3--3--------2----------2-------------------------|  
D|---0---------0----------------------------| 4--4-------4--4-----------------------| 
A|----------------------4--------4---------2----------2----------------------------|  
E|--------------------------------------------------------------2~| --0--2----------| 

| /  slide up
| \  slide down
| h  hammer-on
| p  pull-off
| ~  vibrato
| +  harmonic
| x  Mute note