In my opinion, these are the 3 top tracks found in the City Hunter OSTs. They're not the main tracks at all, but these jazz pieces are really quite exceptional and stands out from the rest. They sound like 80s / 90s synth-pop jazz but its liberal use of deep-reverb drums along with hints of japanese flute really adds plenty to the vibe! Oh, and some of my friends used to call these porno music, somehow.