In search of the lost chord(s)...
I think I found the notes! I looked at the guitar chords which I am familiar with and started playing around on the piano. Here is what I came up with..
C D G (first chord). D E A (second chord). B C# F# (third chord)
They second and third are the same voicings based on the first chord.
I know Chicago plays a lot of dissonant chords, so this seems to work. Not quite there yet but close....
If you have a piano plunk it out and see what you think!
Thanks as always, Bernie