Mario Tubak - Happy Birthday Chords & Tabs

Fun on the acoustic guitar, awesome on the electric guitar! Just improvise
Stave 1:
t:                    null                    null                        null
E|---------------------------------------------------------------------------------------|
B|---------------------------------------------------------------------------------------|
G|--------------7--6----------------9--7----------11--7--7--6--4----12--12--11--7--9--7--|
D|--7--7--9--7----------7--7--9--7----------7--7-----------------------------------------|
A|---------------------------------------------------------------------------------------|
E|---------------------------------------------------------------------------------------|
[ Tab from: https://www.guitartabs.cc/tabs/m/mario_tubak/happy_birthday_tab.html ]
Stave 2:
t:  E  E  E  E  E E  E  E  E  E  E  E E  E E  E  E  EE E  E  E  E  E  E  EE  EE  EE  E  EEE
E|------------------------------------------------------------------------------------------|
B|------------------------------------------------------------------------------------------|
G|--------------7/6--6--------------9/7--7b--------11b--7--7--6--4----12--12--11--7--7/9\7--|
D|--7--7--9--7----------7--7--9--7-----------7--7-------------------------------------------|
A|------------------------------------------------------------------------------------------|
E|------------------------------------------------------------------------------------------|

Stave 3:
t:  S  S  S  S  S  S  S  S S S  S  S  S  S  S  S  S  S  S  S S  S  S  S  SS S  S  S  S  S
E|---------------------------------------------------------------------------------------|
B|---------------------------------------------------------------------------------------|
G|--------------------7--6h7p6--6--6--------------------9--9b--7--------11b--7--7--7--7--|
D|--7--7--7--7--9--7------------------7--7--7--7--9--7------------7--7-------------------|
A|---------------------------------------------------------------------------------------|
E|---------------------------------------------------------------------------------------|

Stave 4:
t:  S S S  S S S  null  SS  SS  SS SS SS  S  S S S  S
E|----------------------------------------------------|
B|----------------------------------------------------|
G|--6h7p6--4h6p4----12--12--11h12p11--7--7h9p7--7-----|
D|----------------------------------------------------|
A|----------------------------------------------------|
E|----------------------------------------------------|