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Author Topic:   Setting intonation at the saddle for a lap slide guitar.Help.
Guitar Jim
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posted 02-21-2004 05:25 AM     Click Here to See the Profile for Guitar Jim   Click Here to Email Guitar Jim     Edit/Delete Message   Reply w/Quote
On a conventional acoustic guitar with it's normal action I usually set the intonation at the saddle by *ear* comparing the 12 fret harmonic with the fretted note.I don't like using tuners.
What's the best way,without using a tuner,to set the saddle intonation for a guitar set up with high nut/saddle action(3/8" all over the neck)for lap slide style?The notes on this guitar will never be fretted....only open notes and notes played with the slide will be used.

[This message has been edited by Guitar Jim (edited 02-21-2004).]

DaveWendler
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posted 02-21-2004 08:17 AM     Click Here to See the Profile for DaveWendler   Click Here to Email DaveWendler     Edit/Delete Message   Reply w/Quote
It's a visual thing...just measure the distance from the nut to the 12th fret...and double that distance to the bridge location.

Your ear will do the rest as you learn to play it.

resophil
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posted 02-21-2004 09:52 AM     Click Here to See the Profile for resophil   Click Here to Email resophil     Edit/Delete Message   Reply w/Quote
Yeah, I think intonation on a lapstyle is highly overrated because you can be microtonally off pitch so easily with the slide. Measure, then depend on your ear.

-Phil

DaveWendler
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posted 02-21-2004 11:04 AM     Click Here to See the Profile for DaveWendler   Click Here to Email DaveWendler     Edit/Delete Message   Reply w/Quote
Just for fun...my latest guitar, a lap-style...I call it the "electroBro"...
http://www.electrocoustic.com/newimage/electrobro2small.jpg

Neck is "square" Douglas fir with my standard "magpi" pickup system.

Here's a soundclip...all eC instruments...
http://www.electrocoustic.com/audio/electroBro.mp3

Paul Hostetter
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posted 02-23-2004 01:36 PM     Click Here to See the Profile for Paul Hostetter   Click Here to Email Paul Hostetter     Edit/Delete Message   Reply w/Quote
Guitar Jim: The notes on this guitar will never be fretted....only open notes and notes played with the slide will be used.

Then the saddle position is irrelevant. You only need to get the open strings in tune and then learn to play the thing in tune. All the intonation you need is in your ear and the bar in your left hand, nowhere else.

John B
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posted 02-23-2004 04:21 PM     Click Here to See the Profile for John B   Click Here to Email John B     Edit/Delete Message   Reply w/Quote
Au Contraire, mon frere.

I just picked up this beauty in GUITAR CENTER just over the mountain from you... yes, it is in fact a very rare Hawaiian built by Chris J. Knutsen in his "late period" (somewhere between 1927-1930). And yes, it had been sitting in Guitar Center for 2 1/2 years or more, waiting for someone to notice it (at least, that's how long it took me to recognize it for what it is).

Take a look at that saddle - wavy all over the place. The intonation is TERRIBLE because the saddle is actually sitting out of and in front of the saddle slot. I cannot play a straight bar, say, at the 12th fret, and have any combination of more than two strings play in tune.

So, if one intends on playing any more than two strings at once, intonation at the saddle is a good thing...

Guitar Jim
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posted 02-24-2004 06:33 PM     Click Here to See the Profile for Guitar Jim   Click Here to Email Guitar Jim     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Paul Hostetter:
Guitar Jim: [b]The notes on this guitar will never be fretted....only open notes and notes played with the slide will be used.

Then the saddle position is irrelevant. You only need to get the open strings in tune and then learn to play the thing in tune. All the intonation you need is in your ear and the bar in your left hand, nowhere else.

[/B]



Hi Paul,I pretty much was aware of this but I thought maybe there was more to it than that, as I have zero experience with lap style setup.Just so I'm really,really clear on this,are you saying that as long as the open strings are in perfect tune with each other, then irrespective of whether the saddle is slanted or not, or whether the strings come off the saddle in a straight line from E string to E string(that is no extra compensation is built into the saddle for individual strings) or not, then those strings will still sound in perfect tune with each other(or with open strings)when played anywhere on the neck as long as the bar is slanted or positioned correctly to dial in the intonation?Whew, that was probably a complicated way of putting it but I hope it's clear.Thanks Paul.
By the way, I think lap slide produces the clearest and most resonant tone I have ever experienced with my playing.I just love that tone.

Paul Hostetter
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posted 02-24-2004 09:00 PM     Click Here to See the Profile for Paul Hostetter   Click Here to Email Paul Hostetter     Edit/Delete Message   Reply w/Quote
John B, our definitions of intonation do not mesh well. I think having a simple correct saddle is the good thing. Intonation is something else altogether: the player’s ability to play in tune within the constraints of certain basic mechanical limitations. Bear with me here.

In the simplest sense, intonation is the degree to which a player can play a note at a given ideal pitch. It’s a common term in the violin and vocal music world where there are no chords really, and no frets. You play/sing flat, you play/sing sharp, all this is part of a performer’s intonation.

In a fretted instrument, intonation involves a complex of mechanical issues, because the frets run interference with a player’s skill. Press a string down and it plays sharper than the intended pitch because the fret is in the "wrong" place, that’s an intonation problem one can ascribe to the instrument. Actually, it’s usually the saddle or the nut that’s wrong, but the point is: the fretted note is wrong. The intonation is wrong.

When you subtract frets from the equation, all that’s left is the open strings between a (hopefully) straight saddle and a straight nut, nothing more. Adjusting intonation is done with the bar on strings that are presumably in tune and have that modicum of definition to their ends - that much is certainly a no-brainer - but more importantly, like a singer or a violinist, the player needs to have an ear and some coordination in manipulating the bar until the intended notes are in tune. That’s intonation.

To invoke the term intonation, based on a distorted and screwed up saddle such as we see on this poor old Knutsen, or even a straight one where it belongs, does not constitute "intonation" at all, it is merely one factor that affects it negatively.

Cool guitar though!

And Guitar Jim: if the saddle is reasonably straight, whether it’s slanted or not, it’s entirely possible to play a full chord in tune (as in tune as steel guitar can be anyway!) with simple bar technique. The little offset for the B in normal guitar setups is so small that it won’t affect bar intonation audibly. If you find I am wrong, and somehow the second string always sounds sharp to you when you know the open strings are perfect, then go for a straight line saddle. But I bet it won’t matter.

Whether it’s parallel to the nut or not is immaterial, for even with a slanted saddle, the degree of slant required in the bar is a very subtle adaptation to that differential in string lengths. If you want something to ponder, check out Ralph Novak’s Novax fan-fret fingerboards.

John B
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posted 02-24-2004 10:15 PM     Click Here to See the Profile for John B   Click Here to Email John B     Edit/Delete Message   Reply w/Quote
Ahh. In the fretted world, we run into intonation problems because the distance from the nut to the 12th fret and the distance from the saddle to the 12th fret may vary because of saddle placement, nut placement, string gauge, etc. In the fretless world, many of those issues don't apply because the fret is instantly movable to the center point (easily noticed when not damping behind the bar, so that both sides of the string sound).

My problem isn't so much an intonation problem, it's the fact that the string length varies so much from string to string so that the midpoint of each string isn't in the same spot as the adjacent string.

Paul Hostetter
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posted 02-24-2004 10:35 PM     Click Here to See the Profile for Paul Hostetter   Click Here to Email Paul Hostetter     Edit/Delete Message   Reply w/Quote
Think it's any different for violinists or cellists?

John Bushouse
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posted 02-25-2004 07:43 AM     Click Here to See the Profile for John Bushouse   Click Here to Email John Bushouse     Edit/Delete Message   Reply w/Quote
Well, I would think violinists would have a harder time holding the bar with their left hand, and a cello doesn't fit on one's lap as easily as a Hawaiian guitar, but I'm betting the principles are the same.

Dr. Moreau
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posted 02-25-2004 09:59 PM     Click Here to See the Profile for Dr. Moreau   Click Here to Email Dr. Moreau     Edit/Delete Message   Reply w/Quote
My lap steel's saddle is set exactly parallel to the nut. I've experimented & it seems that as I go up the neck I do indeed have to slant the bar ever so slightly to play chords perfectly in tune.

Lucky for me, I'm not a perfectionist. You can always do like the violinists & spackle a little vibrato over things.

Maybe the next one I build I'll give the saddle a few degrees of compensation just to see if I notice a difference.

All times are PT (US)

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