Howard, are you saying "Sweeter than the Day" is like Le Pas? If so, I'll be looking for it.Musically, the Horvitz stuff is a bit more structured. But I think it would have appeal to virtually anyone who likes jazz at any level. Wayne Horvitz made a studio album with this same title, as well as this live recording. Both are very good, but I especially like the live one. It is on Kufala records, which are marketed as 'authorized bootlegs'.
One of the most unique recordings I've ever heard, one I find highly addictive, is Pierre Yves Mace - "Faux Jumeaux". Marco, I think this would be one of your favorites.