Basically: 1) I'd like to define a library of instruments for reuse. Seems like this *could* be achieved by defining one class per .ck file and adding these files (possibly by a script) to a running chuck before use. Has the disadvantage that the first zillion shreds will be taken up by instrument-def files, not too handy if a replace/remove a schred. Is there a best/better way to do this? I found no include, did I overlook something? 2) Supposed I want to do a slightly complex pitch envelope. How is that best achieved? Which example to look at? -- peace, love & harmony Atte http://www.atte.dk