Main Melody:
|-0-2-4-7-5-4-0--------0h2h4-2-0---0-2-----|
|--------------------------------4-----2---|
|------------------------------------------|
|------------------------------------------|
|------------------------------------------|
|------------------------------------------|
[ Tab from: https://www.guitartabs.cc/tabs/a/alex_gaudino/im_in_love_tab_ver_3.html ]
Bass line progression in Powerchords:
|---------------------------------|
|---------------------------------|
|---------------------------------|
|-------------2-2-2-2-2-2-2-2-2-2-|
|-2-2-2-4-4-4-0-0-0-0-0-0-0-0-0-0-|
|-0-0-0-2-2-2---------------------|
E5 F#5 A5
|---------------------------------|
|---------------------------------|
|---------------------------------|
|-6-6-6-4-4-4-2-2-2-2-2-2-2-2-2-2-|
|-4-4-4-2-2-2-0-0-0-0-0-0-0-0-0-0-|
|---------------------------------|
C#5 B5 A5
