linrand_i betarand_i don't appear to be regular or standard opcodes, so perhaps they are UDOs, defined elsewhere and which would need to be included. Send bugs reports to the Sourceforge bug tracker https://sourceforge.net/tracker/?group_id=81968&atid=564599 Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"