Hello, I was trying to use the clisp interface of the Csound 5.06 (64 bit version) and after installing clisp successfuly I have tried: E:\Program Files\Csound\interfaces\lisp>clisp test.lisp *** - EVAL: undefined function USE-SYSTEM I guess this is because of the first line in test.lisp which I had to comment out since I don't have such directory or filen under the csound directory hierarchy: ;;(load "d:/utah/opt/cm/src/cm.lisp") (use-system :cffi) (load "csound.lisp") (load "filebuilding.lisp") (cffi:load-foreign-library "csnd.dll") (setq cs (csound::csoundCreate nil)) (cffi:with-foreign-string (csd "../../examples/trapped.csd") (filebuilding::csoundCompileCsd cs csd)) (setq *keep-playing* t result 0) (loop while (and *keep-playing* (eq result 0)) do (setq result (csound::csoundPerformKsmps cs))) So, how can I run this lisp example for csound? Where can I get that cm.lisp file? Regards, -- Emre Sevinc e-MBA Software Development @ Istanbul Bilgi University http://www.bilgi.edu.tr http://www.bilgiemba.net http://www.cogsci.boun.edu.tr http://ileriseviye.org/blog http://fazlamesai.net http://cazci.com