Check out Jürgen Hailbe's Morphing programmer: http://www.oldcrows.net/~jhaible/tonline_stuff/morph.html and also the simpoe programmer from Synapse magazine by "Arpad Benares" (Serge!) at Cynthias site: http://www.cyndustries.com/synapse/synapse.cfm?pc=43&folder=march1977&pic=31 /d