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Topic: Just intonation tuning for G6 |
AJ Azure
From:
Massachusetts, USA * R.I.P.
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Posted 25 Jun 2008 4:09 pm |
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Does this look right?
D +2.0
B -10.0
G 0.0
E -10.0
B -10.0
G 0.0
Thank ye  |
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b0b
From:
Cloverdale, CA, USA
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Posted 25 Jun 2008 4:22 pm
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It's definitely in the ball park. I'd add 5 cents to everything so that the open strings won't sound flat against other instruments.
A perfect major 3rd is about 14 cents flat of the equally tempered meter. 10 cents is a real good compromise, as it sounds in tune but allows for a bit of drift due to temperature, bar pressure, etc. I imagine your tuning sounds pretty darn sweet! 
_________________
-𝕓𝕆𝕓- (admin) - Robert P. Lee - Recordings - Breathe - D6th - Video |
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Rick Aiello
From:
Berryville, VA USA
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Posted 25 Jun 2008 4:32 pm
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If you want your root G to be set to it's ET value ...
D = (+)2 cents sharp of it's ET value
B = (-)14 cents flat of it's ET value
G = 0
E = (-)16 cents flat of it's ET value
B = (-)14 cents flat of it's ET value
G = 0
Last edited by Rick Aiello on 25 Jun 2008 4:37 pm; edited 1 time in total |
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AJ Azure
From:
Massachusetts, USA * R.I.P.
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Posted 25 Jun 2008 4:36 pm
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Hi Bob, yeah it sounds pretty decent. After laboring over many different tunings it feels good to settle into one for now  .
By adding 5 you mean this?
D +7.0
B -15.0
G 0.0E -15.0
B -15.0
G 0.0
or this?
D -3.0
B -5.0
G 0.0
E -5.0
B -5.0
G 0.0
How apparent would it be that I were out of tune with other instruments (say guitar, bass, violin, clarinet) if i go with this or the other 2?
D +2.0
B -10.0
G 0.0
E -10.0
B -10.0
G 0.0 |
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AJ Azure
From:
Massachusetts, USA * R.I.P.
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Posted 25 Jun 2008 4:38 pm
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| Rick Aiello wrote: |
If you want your root G to be set to it's ET value ...
D = (+)2 cents sharp of it's ET value
B = (-)14 cents flat of it's ET value
G = 0
E = (-)16 cents flat of it's ET value
B = (-)14 cents flat of it's ET value
G = 0
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Rick you da man! thanks! |
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Rick Aiello
From:
Berryville, VA USA
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Posted 25 Jun 2008 4:50 pm
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| Quote: |
| By adding 5 you mean this? |
D = (+)7 cents sharp of it's ET value
B = (-)9 cents flat of it's ET value
G = (+)5 cents sharp of it's ET value
E = (-)11 cents flat of it's ET value
B = (-)9 cents flat of it's ET value
G = (+)5 cents sharp of it's ET value
As b0b states ... having the sharps/flats "spread" abit ... will allow the JI tuning more leeway with ET tuned instruments.
It's the relationship of the intervals ... that makes JI tuning sweet ... not the "reference" point.
It seems that guys like Jerry Byrd (pre-electronic tuners) ... simply took the "Hi E" off the rhythm guitarist ... and tuned JI from there. |
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b0b
From:
Cloverdale, CA, USA
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Posted 25 Jun 2008 7:30 pm
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| AJ Azure wrote: |
Hi Bob, yeah it sounds pretty decent. After laboring over many different tunings it feels good to settle into one for now .
By adding 5 you mean this?
D +7.0
B -15.0
G 0.0
E -15.0
B -15.0
G 0.0
or this?
D -3.0
B -5.0
G 0.0
E -5.0
B -5.0
G 0.0 |
Neither. Adding 5 cents to all of your numbers gives you this:
D +7.0
B -5.0
G +5.0
E -5.0
B -5.0
G +5.0
See how they straddle the center line? None of the open strings will sound too sharp or too flat compared to an equal tempered instrument. In your original numbers, the -10 cents would tend to sound flat on the open strings.
Your bar position takes care of the problem up the neck, but open strings are a different matter.
Jeff Newman, the master of this stuff, for a long time taught that the E strings of the E9th should be tuned to the center line. Then one day he realized that by raising the root tone a notch, his open strings would be more in tune with other instruments. He republished his chart with new numbers that were higher. All of the intervals were the same, but there were a lot more numbers on the "plus side" of the center line.
_________________
-𝕓𝕆𝕓- (admin) - Robert P. Lee - Recordings - Breathe - D6th - Video |
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AJ Azure
From:
Massachusetts, USA * R.I.P.
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Posted 25 Jun 2008 7:37 pm
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ack break out the slide rule Mr. Wizard!!
So do I go with Rick's option or Bob's option?
At any time I might play with two guitar players, a violin, cello, trumpet, accordion, upright bass, trombone, clarinet, sax, uke.
should i concern myself mainly with harmonic instruments? |
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AJ Azure
From:
Massachusetts, USA * R.I.P.
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Posted 25 Jun 2008 8:09 pm
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| will this matter as much or the same if this is on a spider bridge or tricone reso rather than an electric? |
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Garry Vanderlinde
From:
CA
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Posted 26 Jun 2008 3:31 pm
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| How would you, or can you, tune cents flat or sharp on a Peterson strobe? |
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b0b
From:
Cloverdale, CA, USA
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Posted 26 Jun 2008 4:08 pm
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A difference of 5 cents is generally inaudible between instruments of different timbres. Your original numbers +5 cents are the way I normally tune. It always sounds in tune with the guitars, bass, harmonica and keyboards that I play with. The accordion is the only instrument you listed that you might have a problem with. They are notoriously bizarre.
Rick's numbers are close to theoretical perfection. I don't tune that way because I'm lazy.
_________________
-𝕓𝕆𝕓- (admin) - Robert P. Lee - Recordings - Breathe - D6th - Video |
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