hey, this is the solo in the song the heart of life. :) this tab is from the continuum 
tab book so then i think this is 100% correct.

Artist. John mayer
Albun Continuum

b:bend
b&h: bend and hold
v: vibrato
~: keep holding the note
r: realese
s:slide

e|--------------------------------------------------------------|
B|--------b17--b17--17--15---------------17-------15--b17--v17--|
G|--------------------------b16--14--14------b16----------------|
D|--------------------------------------------------------------|
A|--------------------------------------------------------------|
E|--------------------------------------------------------------|


e|--------------17------------------------------------------------s17-----|
B|-------b&h17~~~~~~r17--15-------17----------------15--s17--s17-------17-|
G|---------------------------b16------b16--14--b16------------------------|
D|------------------------------------------------------------------------|
A|------------------------------------------------------------------------|
E|------------------------------------------------------------------------|


so thats it, pretty fun and easy solo :) if you wonder something send an email to rhythm1@live.se