The wahclav is actually from Hypersonic 2! All of the tracks I played on a midi keyboard one by one, except drums that I programed... so I don' t have any notation! The trumpet theme is South-East European actually Serbian folk music!
I can't find the project right now, but as I remember I picked up some simple chords and spiced them up like an improvisation! The chords are g min7, f major, e dim7, and d# maj!
In the intro I just added randomly some notes from the scale to the every chord!
So at the very start I used a chord on g with g, a, b flat and f (that will be g min7/9 or something? I m not very familiar with the chord markings When the beat starts there is also an C sus4 or something! If I somehow find the project file, I ll send you a midi