Re: [Denemo-devel] Ukulele fret diagrams

[Richard Shann]

On Sat, 2016-06-18 at 17:40 +0100, Richard Shann wrote:
> > On Sat, 2016-06-18 at 15:57 +0100, Dominic Shann wrote: 
> > > The standard ukulele tuning in Britain is: a e c g - the 3rd string
> > > being the lowest (middle C), the others a 3rd, 5th and  6th higher,
> > > 
> Oh, right, that is what is defined in LilyPond as the default, and so
> this works:
> 
> \version "2.18.0"
> \include "predefined-ukulele-fretboards.ly"
> 
> \storePredefinedDiagram #default-fret-table  <g' c' e' c''>
>                         #ukulele-tuning
>                         #"o;o;o;3;"
>                         
> \score 
> {
>   \new FretBoards
>      {
>       \set Staff.stringTunings = #ukulele-tuning
>       <g' c' e' c''> 
>      } 
> }
> 
> Assuming you want three open strings and the third fret on the "a"
> string.
> You need to specify the g an octave higher than you did, which makes
> sense as that is the right note.
> What is a bit strange is that this (and all the others, no doubt) aren't
> already defined. They have only written definitions for entering chords
> via names like c:m7 etc.
> 
> So, I think if you can come up with a set of \storePredefinedDiagram
> commands with the right notes and the right frets I can do the rest.
> If you want to do this send me a couple of samples first...

I thought it can't be as difficult at that, so I asked on lilypond-user
and indeed you can do this:

\version "2.18.0"
\score 
{
 \new FretBoards {

                 \set Staff.stringTunings = #ukulele-tuning
                 < c' e' g'\4 c''>
                }
}

That is, you don't need to include the pre-defined fret boards, you just
need to specify that the g' is to be on the 4th string with
g'/4

This is easy to do in Denemo, you can enter the notes c' e' g' c'' and
put the cursor on the g' and with Notes/Rests->Directives->Add LilyPond
to Note add \4 after the note (and nothing before). Then (with
Staff=>Staff Properties->Fret Diagrams->Fret Diagrams on you get the
fret diagram required.

Of course, for efficiency you will need some button creation - e.g.
having made the fret-diagram once you can then clone it as a snippet
which you label with the chord name (hmm maybe what we need is to have a
"make-me-a-palette-button-to-create-the-object-at-the-cursor"
routine ...)

This all looks eminently doable.

Richard







> 
> Richard
> 
> >  giving the chord of C6 when the open strings are strummed. Apparently
> > the standard tuning in Hawaii is a tone higher. Some people tune the
> > bottom string low, though this is not common.
> > 
> > Sent from my phone.
> > 
> > ______________________________________________________________________
> > From: Richard Shann
> > Sent: ‎18/‎06/‎2016 09:57 AM
> > To: Joe Wilkinson
> > Cc: address@hidden; Dominic Shann
> > Subject: Re: Ukulele fret diagrams
> > 
> > 
> > On Mon, 2016-06-13 at 16:09 +0100, Joe Wilkinson wrote:
> > > Hi Richard,
> > > I am having a problem with Uke fret diagrams.
> > > The log file shows that there is no "string" for the 4th string.
> > 
> > I've cut down your file to this:
> > 
> > version "2.18.0"
> > \include "predefined-ukulele-fretboards.ly"
> > \score 
> > {
> >   \new FretBoards
> >      {
> >       \set Staff.stringTunings = #ukulele-tuning
> >       <g c' e' c''>
> >      } 
> > }
> > 
> > which just tries to typeset the first chord you have and gives the
> > error
> > message. In this form it is good for submitting to the lilypond-user
> > mailing list, but if I send it I would like to understand more.
> > You have four strings on the uke, what pitches are they in this same
> > notation? And which string & fret are you wishing will be used for
> > each
> > of the notes g, c', e', c'' ?
> > 
> > Sorry to be so long in replying, I've been trying to get 2.0.10
> > ship-shape.
> > 
> > Richard
> > 
> > 
> > 
> > 
> > > The problem being, I guess that a Uke is tuned g-above-midC, midC, 
> > > e_above_midC and a-above-midC, in so-called re-entrant tuning.
> > > this would provide ambiguities in many chords, since 2nd fret of
> > string 
> > > 4 has the same tone as open string 1.
> > > 
> > > I thought I could get round this by pretending that the Uke was
> > tuned 
> > > with its bottom string g-below-midC - see denemo file attached.
> > > But the typesetter seems to know that the uke doesn't go that low!
> > > I looked in the denempprintB.ly file and it has \include 
> > > "predefined-ukulele-fretboards.ly"
> > > Ive looked in "predefined-ukulele-fretboards.ly" and it looks as if
> > it 
> > > has the chord shapes already defined.
> > > Have you any idea how they can be actioned?
> > > Or have I missed something?
> > > 
> > > Joe
> > > Copied to Dom as a local Uke expert.
> > 
> > 
> 
> 
> 
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