Again, never seen this one. But any film that gets a 4.7 on imdb gets my respect. What I know for certain is that this is Italian Poliziotteschi at its best. Gorgeous soundtrack by Micalizzi. Lots of strings on this one, and a main theme that's reworked in a lot of interesting ways. Some raw guitar and breakbeat sections not unlike a lot of what we hear in Morricone's polizio work.
This particular song includes the flute and trumpet to give a particularly American Blaxploitation film feel. Check how the bongos/djembes are brought forward at about the one minute mark