Bullfrog Jumped on a Puncheon Floor(ab) Tell my Ma (ab) 
a: G  G  G  G    G  G  G  G
   G  G  G  G    C  D  G  G

b: G  G  D  D    G  G  D  D  
   G  G  D  D    C  D  G  G
----------------------------
a: D  D  D  D    A  A  D  D
   D  D  D  D    A  A  D  D

b: D  D  G  G    D  D  A  A
   D  D  G  G    D  A  D  D