Dukkha Intro chords by Avicii

This is the chords for the sound dukkha from avicii hope you like it!
ps: its my first tab. :)

starts with Bb

then the accoustic comes

 Bb G F E

Then an electro part
and again:

 Bb G F E

Im not so good at the guitar but i discovered the chords by listening to the music
and then i decided to post it, if something is wrong correct me :)