Chords used:
Db(x,4,6,6,0,0) Pick on verse 5,4,3,4,1,2,4,2( - numbers of strings)
Ab(4,6,6,x,0,0) Pick 6,5,4,5,1,2,4,2 (the same in F# and  A)
or Bm(x,2,4,4,0,0) Pick same as Db
F#(2,4,4,x,0,0)
B(6,8,8,x,0,0)  Pick 6,5,4,5,1,2,5,1
A(5,7,7,x,0,0)
E(0,2,2,x,0,0)
Cd?(9,11,11,x,0,0)
Verse1:
C#          Bm                F#
 They don't seem to know your name
         B
 Does it really matter?
C#           Ab          F#       B
 They don't even shed a tear, for you
C#           Ab               F#
 They didn't seem to waste no time
     B
 To fill your locker
C#           Ab             F#        B
 They don't give a second thought, to you
 A                     B
 Oh, things have gotta change
Chorus:
E                  B
  I'm sorry that I never said
C#                 Ab
 How much you had really meant
F#                 B
 It's hard to say but now you're gone
A                        B
 So does it really matter?
E                  B
 I'm sorry that I never tried
C#                 Ab
 To tell you I was on your side
B    B     A
 Now you're gone
Verse2:(Chords are the same as in the first verse)
You're spending all your time alone
 Cause you don't need them
 No one can see the pain inside, of you
https://www.coveralia.com/acordes/does-it-really-matter-theory-of-a-deadman.php
 You just wanna say goodbye
 You're giving up now
 I think the letter says it all, it's not your fault
A                       B
 Oh, things will never change
Chorus: (the same as in first part of chorus)
I'm sorry that I never said
 How much you had really meant
 It's hard to say but now you're gone
 So does it really matter?
I'm sorry that I never tried
 To tell you I was on your side
 It's hard to say but now you're gone
 So does it really matter?
Verse3:
B      Ab               F#
Did it hurt as much that day
    B
 As every other?
B     Ab            F#       B
 So I light a candle in, your name
Chorus:
I'm sorry that I never said
 How much you had really meant
 It's hard to say but now you're gone
 So does it really matter?
 I'm sorry that I never tried
 To tell you I was on your side
 It's hard to say but now you're gone
A                         B
 So does it really matter?
F#                   B
It's hard to say but now you're gone
A                       B
 To me it really matters    ( i play without solo =))
F#,B,
A                     B         E
Does it really matter?
Hope u'll enjoy it.