Don’t know Allen Forte’s theory but in the subXall set of abstractions (jvkr.nl/shelves) there are a few methods inspired by Clarence Barlow’s theory: indigestibility, greatest common divider, numbers reduced to primes. This might be useful.
Matthew McCabe’s setcalc object is what you need.
Here is a a UB version i compiled for somebody i while ago. Not sure it’s available from his site now,
As far as your request for calculating prime form I’d say setcalc does exactly that. Thanks oli.
You might try looking at Dimitri Tymoczko’s Chord Geometries.
Quote: jvkr wrote on Wed, 09 April 2008 12:53
> Don’t know Allen Forte’s theory
Almost completely unrelated to Clarence’s work.
Ironically, Forte’s own book, _The Structure of Atonal Music_, is not the best introduction to musical Set Theory (which is not entirely Forte’s, anyway). There are two slim volumes, both of which provide concise introductions to the subject: _Basic Atonal Theory_ by John Rahn and _Set Theory Objects_ by some guy called Peter Castine.
Robert Morris’ book, _Composition with Pitch-Classes_ is the encyclopedic work on the subject.,
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