Seventh chords in 15edo tutorial
Hi everyone, here is my first in a series of biweekly tutorial in different xenharmonic (or microtonal) tuning systems.

In this tutorial I am showcasing the six types of 7th chords available in 15 tone equal temperament.  This is because of three types of 7th: the 960¢ harmonic seventh which is very close to 7:4, or the 7th harmonic, the 1040¢ 7th which is a kindof neutral 7th which can function as a minor 7th, and the 1120¢ major 7th.

For a more detailed discussion of these 7th, visit my blog on

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