How to read tablature? 
Intro:
     Db          Ab            Bbm        Fm                                                                                            
xA|--------2----------5----|-----2-------2----------|
xE|--3---------------------|--------0----------2----|
xC|-----2-------2----------|--4-------x----------x--|
xG|--------0-x--------2-x--|--------0-x--------4-x--|

     Gb          Db             Gb          Ab                                                                                                
xA|------------------------|-------------------5----|
xE|-----0--0----3----------|-----0--0---------------|
xC|--0-------x--------2-x--|--0-------x--2----------|
xG|--------0-x--------0-x--|--------0-x--------2-x--|


Chorus:
Db                  Ab
Here's to the ones that we got
Bbm                Fm
Cheers to the wish you were here but you're not
           Gb                 Db
'Cause the drinks bring back all the memories
   Gb                Ab
Of everything we've been through

Db             Ab
Toast to ones here today
Bbm               Fm
Toast to the ones that we lost on the way
           Gb                 Db
'Cause the drinks bring back all the memories
        Gb              Ab                   -nc-
And the memories bring back memories, bring back you

Verse 1:
          Db             Ab             Bbm             Fm
There's a time that I remember, when I did not know no pain
       Gb              Db              Gb                    Ab
When I believed in forever, and everything would stay the same
       Db                 Ab               Bbm           Fm
Now my heart feel like December, when somebody say your name
         Gb                  Db               Gb               Ab
'Cause I can't reach out to call you, but I know I will one day, ayy

Pre-Chorus 1:
Db      Ab                    Bbm             Fm
  Everybody hurts sometimes, everybody hurts someday, ayy-ayy
Gb          Db                      Gb                    Ab
  But everything gon' be alright, go and raise a glass and say, ayy

Chorus 1:
Db                  Ab
Here's to the ones that we got
Bbm                Fm
Cheers to the wish you were here but you're not
           Gb                 Db
'Cause the drinks bring back all the memories
   Gb                Ab
Of everything we've been through

Db             Ab
Toast to ones here today
Bbm               Fm
Toast to the ones that we lost on the way
           Gb                 Db
'Cause the drinks bring back all the memories
        Gb              Ab                        Db
And the memories bring back memories, bring back you

Post-Chorus 1:
        Ab                
   Doo-dooo doo-doo-doo-do   
Bbm            Fm
   Doo-doo-do dooo doo-doo-dooo-do
Gb              Db
   Doo-doo-do-dooo doo-doo-dooo
Gb              Ab                   -nc-
Memories bring back memories, bring back you

Verse 2:
          Db             Ab             Bbm           Fm
There's a time that I remember, when I never felt so lost
       Gb               Db               Gb            Ab
When I felt all of the hatred, was too powerful to stop -ooh yeah-
       Db                  Ab              Bbm             Fm
Now my heart feel like an ember, and it's lighting up the dark
        Gb                Db               Gb            Ab
I'll carry these torches for ya, and you know I never drop, yeah

Pre-Chorus 2:
Db      Ab                    Bbm             Fm
  Everybody hurts sometimes, everybody hurts someday, ayy-ayy
Gb      Db                      Gb                    Ab
  Everything gon' be alright, go and raise a glass and say, ayy

Chorus 2:
Db                  Ab
Here's to the ones that we got -oh-oh-
Bbm                Fm
Cheers to the wish you were here but you're not
           Gb                 Db
'Cause the drinks bring back all the memories
   Gb                Ab
Of everything we've been through -no no-

Db             Ab
Toast to ones here today -ay-ayy-
Bbm               Fm
Toast to the ones that we lost on the way
           Gb                 Db
'Cause the drinks bring back all the memories -yeah-
        Gb              Ab                        Db
And the memories bring back memories, bring back you

Post-Chorus 2:
        Ab                
   Doo-dooo doo-doo-doo-do   
Bbm            Fm
   Doo-doo-do dooo doo-doo-dooo-do
Gb              Db
   Doo-doo-do-dooo doo-doo-dooo
Gb              Ab                        Db
Memories bring back memories, bring back you

        Ab                
   Doo-dooo doo-doo-doo-do   
Bbm            Fm
   Doo-doo-do dooo doo-doo-dooo-do
Gb              Db
   Doo-doo-do-dooo doo-doo-dooo -ooh yeah-
Gb              Ab                        Db
Memories bring back memories, bring back you

Outro:
Ab               Bbm  Fm
  Yeah-yeah yeah yeah
                  Gb          Db
  Yeah-yeah yeah yeah, yeah-no
Gb              Ab                   -nc-
Memories bring back memories, bring back you