Music & Techniques by Chris Vaisvil

Bohlen-Pierce Diatonic with Clarinet Ensemble

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Bohlen-Pierce Diatonic with Clarinet Ensemble

The tuning used to retune Dimension Pro

! D:\cakewalk\scales\BP_diatonic.scl
!
BP Diatonic
9
!
146.30423
438.91269
585.21692
877.82539
1024.12962
1316.73808
1463.04231
1755.65077
1901.95500

Comments

8 responses to “Bohlen-Pierce Diatonic with Clarinet Ensemble”

  1. b0b

    That sounds right to me. Equal temperament sLsLsLsLs.

  2. b0b

    I see. I had to look up MOS – “moment of symmetry”. I wasn’t familiar with the concept. Checking with a pocket calculator, I see that this uses a large step of 288.235 cents, a small step of 149.803 cents, and the scale pattern is LsLsLsLss.

  3. admin

    Hi b0b – there was an issue with Dimension Pro using the scala file as posted to tuning math. The first improvisation is lost to the ether… But the second improvisation I was able to salvage and it used this tuning.

    ! D:\cakewalk\scales\BP_diatonic.scl
    !
    BP Diatonic
    9
    !
    146.30423
    438.91269
    585.21692
    877.82539
    1024.12962
    1316.73808
    1463.04231
    1755.65077
    1901.95500

  4. admin

    No they don’t map the same. The tuning by Scott Thompson is a 9-note MOS of BP diatonic with linear/isoharmonic 5:7:9

  5. b0b

    Those numbers don’t map to the “traditional” diatonic BP scale, which may be why we’re hearing beats on some of the harmonies. See http://bp.b0b.com/2012/10/7-limit-harmonies/

  6. admin

    Hi b0b,

    It is supposed to the the tritave since it is following this tuning

    ! BP-iso579-MOS9.scl
    !
    9-note MOS of BP diatonic with linear/isoharmonic 5:7:9, per Steve Martin | p = 3/1 (1901.955 c) | g = 438.038 c
    !
    9
    !
    288.235
    438.038
    726.273
    876.076
    1164.311
    1314.114
    1602.349
    1752.152
    1901.955

  7. b0b

    BTW, thank you very much for running this experiment! Could you add the scale documentation to this post, please?

  8. b0b

    To me, that “clarinet” sounds much better because it doesn’t have the even-numbered harmonics of “strings”. I don’t understand what I’m seeing, though. What is the interval between the notes in the columns? Is it a tritave (3/1) or something less?

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