I can only  speak for guitarists, because I am a guitarist, classical
guitarist, and I'll definatly stick to the correct naming for the correct
chords, and I am now going to create my own version of this predefined
guitar diagrams list. If all goes well, and I can manage it, I want to
upload it for everyones use of course.

I still want to add that when browsing the chord list in tuxguitar there
also is a 'dim' and a dim7' chord difference, in which the dim shows the
theoretically correct dim chord, and the dim7 a dim7, as I suspected.

If I am correct, but I can't tell, guitar pro probably has the same as
tuxguitar, since tuxguitar presents itself as a free alternative for it. But
that needs to be checked of course. I still wonder though, why in the
documentation, a correct dim chord is shown in the score, while a dim7 is
shown as the fret diagram. That really needs to be changed, because it is
simply technically wrong.

Another question, as a jazz guitarist, what name is given to a theoretically
correct diminished chord, I mean, without the 7?

grtz,
Bart
http://www.bartart3d.be/


2011/1/30 David Kastrup <[email protected]>

> Carl Sorensen <[email protected]> writes:
>
> > The source for the chord is this:
> >
> > http://www.8notes.com/guitar_chord_chart/Cxdim.asp
> >
> > But my "The Gig Bag Book of Picture Chords for all Guitarists" lists
> > that same chord as C#dim7, but also says that dim and dim7 are
> > alternate names for the same chord.
> >
> > According to Wikpedia, "In most sheet music books, Cdim or C0 denotes
> > a diminished seventh chord with root C. and Cm-5 or Cmb5 denotes a
> > diminished triad with root C.  However, in some modern jazz books and
> > some music theory literature, Cdim or C0 denotes a diminished tirad,
> > while Cdim7 or C07 denotes a diminished seventh chord."
> >
> > So at least from these references, there is a difference of opinion
> > about this notation.
> >
> > If we can get agreement from the guitarists on the list about what is
> > right, we'll fix it to what is agreed.
>
> I think we should include accordionists in this discussion...
> Accordions build their chords from notes of a fixed octave (never mind
> inversions, there are separate bass buttons establishing the bass tone,
> usually by alternating with the chord button).  It has "seventh" and
> "diminuished" chords that are notable for not including a fifth.  So
> indeed C#dim would be C# E Bb on an accordion.
>
> Accordion chords have a number of different styles of notation.  One is
> just spelling out the actual pitches.  And that's basically what we want
> to be doing in the case of guitar chord diagrams/tabulature as well.
> There is no point in spelling out a keyboard chord in tabulature or
> specific guitar notes.
>
> But there is a point in writing _keyboard_ chords in notes but putting
> chord diagrams for guitar above.
>
> So basically we need a mechanism that can take a bunch of keyboard
> chords and route them through predefined chord set translator for a
> particular instrument, be that an accordion (which does not bother all
> too much with fret diagrams actually, so this translation should not be
> tied to them all too much) or a guitar.
>
> --
> David Kastrup
>
>
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