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Z-relation




For example, the two sets {0,1,4,6} and {0,1,3,7} have the same interval vector (<1,1,1,1,1,1>) but they are not transpositionally or inversionally related.

The term originated with Allen Forte , in his ''Structure of Atonal Music'' (ISBN 0300021208).

Some argue that the "relation" is so remote as to be imperceptible, but certain composers have exploited the Z-relation in their work.