After a quick exposition of Mazzola's quantum modulation model for the so-called triadic interpretation of the major scale within the equal temperament, we study the model for the tetradic interpretation of the same scale. It is known that tetrads are fundamental for jazz music, and some classical objects for this kind of music are recovered.
Bibliographical noteFunding Information:
This work was partially supported by a grant from the Niels Hendrik Abel Board . We thank Jes?s David G?mez Tellez for constructive comments on previous versions of this article. We also thank the several anonymous reviewers and the editors for their corrections and suggestions that improved the final version.
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