Music Theory Lesson

dim7 vs min7b5 Tones

Difficulty: beginner

By: Nate Dean

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dim7 (diminished 7th) chords are constructed with the 1st, b3rd, b5th, and bb7th notes of the major scale. bb7 (double flatted seventh) is enharmonically equivalent to the the 6th note of the major scale.

min7b5 (half-diminished 7th) chords are constructed with the 1st, b3rd, b5th, and b7th notes of the major scale.

Ddim7

b3bb7b5Rb3bb7b5R

This Ddim7 chord shape is constructed of 1 (R for root), b3, b5, and bb7.