05Jul8611:50:50amCOMPOSER'S TOOLS HELP - DERIVATION {CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U}{CBM-U} This routine will prompt you to enter a subset of 3, 4, or 6 elements. It will generate all unique Transposition and Inversion levels of the subset. Results are also written in the window and can easily be reviewed in the Enter Row or Edit Row routines. If a subset and it's derivations can not be used to construct a row, you will be notified by way of a screen message. If no subsets can be derived, the Derivation routine will end without printing anything.