Representing the sense of key on the torus
The continuous spatial medium containing the 24 major and minor keys affords repres-
enting the sense of key in a graphical form,^2 using a technique called multidimensional
unfolding. It is a method that is closely related to multidimensional scaling.
99ABFigure 7.2(A) Distributed mapping of tonality on the SOM for probe tone judgements for the nine-chord
sequence modulating from C minor to A minor. Distributing mapping of model 1 for the same sequence.