I just had a chance to try it now and it works great. I did hit an assertion but hey, that’s bound to happen until everything is ironed out. Whee about are you getting the problems? In which function? I’m amazed at how efficiently the table redraws using the hfgens() method. While I was implementing this the first time I thought it would be nice to expose all those gen routines as an API. As it stands they are kind of buried pretty deep into the Csound source.