Odd limit harmony

People say the fundamental chord of the Bohlen Pierce 7 odd limit just intonation scale is [3:5:7], otonally. In frequency ratios that's

    [1/1, 5/3, 7/3]

If we use regular intervals instead of BP intervals to analyze the harmony, that's the just tuning of

    [P1, M6, Sbm10]

Bohlen Piece scales don't have octaves, but my ear still has octave equivalence, so I think I'd hear that as a spread out voicing of

    [P1, Sbm3, M6] # [1/1, 7/6, 5/3]

Since BP doesn't have octaves, you might also think it's odd to do cyclic inversion of chords at the octave, but my ear has octave equivalence, so this chord has a similar sonority to me as does:

    [P1, SpA4, SpM6] # [1/1, 10/7, 12/7]

And

    [P1, m3, Sbd5] # [1/1, 6/5, 7/5]

And this last one has a tertian spelling. So I think the fundamental [3:5:7] chord of BP music is a rotated and spread out version of this diminished chord with a septimal alteration on the fifth.

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