Thanks for your help. I see. I copy pasted your patch and instrument two works, while instrument one now doesn’t work. I wonder if this is because my c-sound code files are identical … what do I need to change in the c-sound code? (see attached). I think that I don’t really understand your instruction:
Next I made sure that the FM parameters and ADSR were set on the RH copy – they get lost during cut and paste. And without them set the orc wont sound . . .
PS. Yes, I know that I need to dive into the csound manual and do all the tutorials. I just thought that it wouldn’t be a big deal to build two of the same kind of c-sound instrument in one patch …