Re: error in predefined chord diagram?

[Tim McNamara]

On Jan 30, 2011, at 3:45 AM, bart deruyter wrote:

> 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?

In jazz the bb7 is generally assumed if the chord is written with "dim" except 
sometimes in horn arrangements.  If the chord functions as a VII then it may be 
written as a minb5 but even there most jazz musicians will assume the 7th is 
present and so will play a min7b5.

The use of triads in jazz is limited except in polychords and hexatonic scales, 
and those aren't used that often.  Triads are generally considered too "plain 
vanilla" and uninteresting.  To a great extent the harmonic signature of jazz 
is in the extensions applied to chords:  b9, 9, #9, 11, #11, b13, 13 in 
particular.