Chords used
Emaj7    C#m7      F#m7        A/B     B13      Am7     Bm7
779897   9x999x    x9x9 10 9   707650  07789x   5x5550  7x7770
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Emaj7                             C#m7
Mother, mother    There's too many of you crying
Emaj7                                            C#m7
Brother, brother, brother    There's far too many of you dying
              F#m7
You know we've got to find a way
              A/B                 B13
To bring some lovin' here today - Ya
Emaj7                               C#m7
Father, father     We don't need to escalate
        Emaj7                                     C#m7
You see, war is not the answer    For only love can conquer hate
              F#m7
You know we've got to find a way
              A/B               B13
To bring some lovin' here today
F#m7             B/A
Picket lines and picket signs
F#m7                 B/A
Don't punish me with brutality
F#m7           B/A
Talk to me, so you can see
Emaj7
Oh, what's going on What's going on
https://www.coveralia.com/acordes/what-s-going-on--reprise---live-at-the-kennedy-center--marvin-gaye.php
C#m7
Ya, what's going on Ah, what's going on
Am7 and Bm7 through the "humming" part
Emaj7                     C#m7
Father, father, everybody thinks we're wrong
     Emaj7                                             C#m7
Oh, but who are they to judge us    Simply because our hair is long
                   F#m7
Oh, you know we've got to find a way
                   B/A
To bring some understanding here today
B13
Oh
F#m7             B/A
Picket lines and picket signs
F#m7                 B/A
Don't punish me with brutality
F#m7            B/A
Talk to me, so you can see   Oh!
Emaj7
What's going on   Ya, what's going on
        C#m7
Tell me what's going on
              Emaj7
I'll tell you what's going on - Uh