Summary of Doubling Rules for Triads

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Section 26.12 Summary of Doubling Rules for Triads

To generalize, here are the doubling rules for voice leading triads in root position, first inversion, and second inversion:

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Root Position Chords: DOUBLE THE BASS
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First-Inversion Chords: DO NOT DOUBLE THE BASS
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  Exception: ${vii}^{\circ}^{6}$ and ${ii}^{\circ}^{6}$ : DOUBLE THE BASS
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  Exception: Consecutive first inversion chords—alternate between DOUBLE THE BASS and DO NOT DOUBLE THE BASS
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Second-Inversion Chords: DOUBLE THE BASS

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