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Re: fretted-string-harmonics-in-tablature snippet

From: Federico Bruni
Subject: Re: fretted-string-harmonics-in-tablature snippet
Date: Tue, 24 May 2011 23:23:53 +0200

Il giorno mar, 24/05/2011 alle 11.33 +0300, Dmytro O. Redchuk ha
> On Mon 23 May 2011, 20:17 Federico Bruni wrote:
> > I think it's pretty clear, but I might be missing something.
> > So we just need a guitar player, or someone who knows something about
> > physics (this is definitely not me), to confirm it.
> Please, someone who knows physics!
> I am a bit lost -- bug? Or not?
> Federico: Well, i've flagged this thread; let's wait a bit.
> Thanks!

Here's a good explanation (the table in particular):

Look at line 4 of the table: harmonics produced on 5th and 24th frets
are 2 octave higher than open string.  My ears agree with this rule :-)

In the second bar of the snippet there is an harmonic played on 5th fret
of 4th string (a d in standard tuning), so the note must be a d two
octave higher than the d of open string.
Currently it's a g.

Look at line 2 of the table: harmonics produced on the middle of the
vibrational length are one octave higher.
When you play an artificial harmonic, you "shorten" the string so that
the middle of the vibrational length will shift up on the right.
In bar 1 of the snippet: left hand is positioned on 4th fret of 3rd
string (b note); right hand pluck the 16th fret, which is the new middle
The rule above applies: one octave higher, because we are in the middle
of the main node.

In the snippet all artificial harmonics of this kind are raised up by
two octaves.

I've just realized that the second tapped harmonic may be wrong:
shouldn't it be played on 7th fret?
The difference between artificial harmonics and tapped harmonics is just
a matter of gesture? Pluck in AH, percussive in TH?

I put lilypond-user in CC, I hope someone will confirm.
Discussion started here:

Sorry, I have few time and a very bad internet connection at the moment,
I can't investigate it further.


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