Diminished seventh chords are formed by stacking which interval pattern?

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Multiple Choice

Diminished seventh chords are formed by stacking which interval pattern?

Diminished seventh chords are built by stacking minor thirds. Start from the root, go up a minor third, then another minor third, then a final minor third. This creates four notes spaced by minor thirds: root, a minor third above, a diminished fifth above the root, and a diminished seventh above the root (spelled to keep the letter names consistent). For example in C, the notes are C, Eb, Gb, Bbb (which sounds like A). Each step is a minor third (C to Eb, Eb to Gb, Gb to Bbb), so the interval pattern is exactly minor third, minor third, minor third. Other patterns would yield different chord qualities, not a diminished seventh.

Diminished seventh chords are built by stacking minor thirds. Start from the root, go up a minor third, then another minor third, then a final minor third. This creates four notes spaced by minor thirds: root, a minor third above, a diminished fifth above the root, and a diminished seventh above the root (spelled to keep the letter names consistent). For example in C, the notes are C, Eb, Gb, Bbb (which sounds like A). Each step is a minor third (C to Eb, Eb to Gb, Gb to Bbb), so the interval pattern is exactly minor third, minor third, minor third. Other patterns would yield different chord qualities, not a diminished seventh.

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