Ok.<br><br>I know the basics of Csound and I am well aware of the possibilities of the p-fields. What I am looking is more of an emulation of subtractive synthesizers filter that has keytracking so that the instrument handles the cutoff keytracking instead of manually typing the values into the score (guess I could have said this in the&nbsp; first post...).
<br><br>Ok, anyway after posting here I found this: <a href="http://acapella.harmony-central.com/archive/index.php/t-1628771.html">http://acapella.harmony-central.com/archive/index.php/t-1628771.html</a>. Maybe I get it working using the calculations from there. 
<br><br>Matti <br>