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- Left hand
- G2Bb2Db3G3
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- Triads
The Doubled Root voicing of Gdim stacks G, Bb, Db and G from the bottom up: the root, minor 3rd, flat 5th and root of the chord.
It's one of the Triads voicings. The others for Gdim are Root Inversion, 1st Inversion and 2nd Inversion.