Allen Forte's unique notation system commonly known as Forte Notation has come to be recognised as one of the most successful attempts at providing a means of describing and analysing musical pitch structures that defy interpretation as tonal or 12-note serial systems. Thus, Forte's system is equally at home describing Ives and Stravinsky as it is Schoenberg and Webern.
Such a system able to deal with intervallic relationships from pitch class extrapolations of material has a potential within SCOM to be itself a generator of pitch series.
The function pcs-normal-order enables a particular circular permutation of 'pitch class set' in ascending order.