but cannot belinked by particularly efficient voice leading; the same holds for {C, G, Af} and {G,Af, Df}
Showing that the voice leadings that the Tonnetz represents are not always efficient.
but cannot belinked by particularly efficient voice leading; the same holds for {C, G, Af} and {G,Af, Df}
Showing that the voice leadings that the Tonnetz represents are not always efficient.
nversionallyrelated chords are close when they share common tones
This does not depend on the structure of the lattice.
tuning lattices are only an approximate model ofcontrapuntal relationships, and only for certain chords
These specifically-defined tuning lattices only work for a restricted number of chords and voice leadings.
the voice leading (C, Df)(Df, C) reflects off the orbifold’s uppermirror boundary
C-Db --> Db-C as a reflection off the boundary of the orbifold represents the encoding of note-swapping equivalence.
To model an ordered sequence of n pitch classes, form the quotient space(R/12Z)n, also known as the n-torus Tn. To model unordered n-note chords of pitchclasses, identify all points (x1 , x2 , ... xn) and (x(1) , x(2) , ... x(n) ), where is anypermutation. The result is the global-quotient orbifold Tn/Sn (17–18), the n-torus Tnmodulo the symmetric group Sn. It contains singularities at which the local topology is notthat of Rn.
\(T^n/S_n\) represents \(T^n\) if the corresponding similar chords identified by \(\sigma\) were divided out.
certain kinds of scales sound good with some timbres and not with others
timbre affects consonance