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In tonal harmony the common‑tone diminished seventh—often shortened simply to “common‑tone diminished”—serves as a fleeting, coloristic device rather than a structural pivot. Its defining trait is the ...

In music, an interval is the distance between two notes. In the example below, count up from and including the lowest note up to the highest pitched note to identify the interval. This interval is ...

The half‑diminished chord, formally known as an “m7♭5” or simply the “Ø” chord, occupies a peculiar niche in Western harmonic theory. Comprised of a root, a minor third, a diminished fifth, and a ...