Re: modify coord-rotate to get exact values for (sin PI) etc (issue 269530043 by thomasmorle...@gmail.com)

2015-10-31 Thread dak 

On 2015/10/30 22:59:54, thomasmorley651 wrote:

On 2015/10/30 21:46:55, benko.pal wrote:
> > And PostScript (and PDF and METAFONT) _do_ represent angles in

degrees.

> > So it's sort of silly that we cannot get an angle of 180 degrees
> > straight into PostScript without change.
>
> now that convinced me.  if we want to output angles in degrees, we
> don't want to switch back and forth neither between degrees and
> radians, nor between angles and sines.  at most one atan (acos) call
> somewhere.
>
> p



Just back home, noticing the discussion here.



Current patch tries to solve (or better: workaround) the problem in

guile.

I have some other pending patches _needing_ exact values from

coord-rotate.

I'd suggest to push it as is (unless some serious defect would be

detected)

after countdown. So that I can go ahead with the follow up stuff.



Opinions?


I hope to get to a "degree rework", but this patch is sort of unrelated
even though I hope to eventually make it unneeded.  So it might as well
go ahead for now.

LGTM

https://codereview.appspot.com/269530043/

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Re: lilypon.org down

2015-10-31 Thread bobr...@centrum.is 
According to:

http://www.downforeveryoneorjustme.com/lilypond.org

It's down.

-David

- Original Message -
> From: "Jean-Charles Malahieude" 
> To: "lilypond-devel" 
> Sent: Saturday, October 31, 2015 12:54:31 PM
> Subject: lilypon.org down
> 
> 
> LP.org is down here in France since yesterday afternoon. Are we the only
> one?
> 
> Cheers,
> Jean-Charles
> 
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lilypon.org down

2015-10-31 Thread Jean-Charles Malahieude 


LP.org is down here in France since yesterday afternoon. Are we the only 
one?


Cheers,
Jean-Charles

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Re: quarter tones in tablature - FretBoards

2015-10-31 Thread dan 

On 2015-10-31 12:49, pls wrote:

d...@faithful.be writes:


On 2015-10-31 11:39, pls wrote:

Thomas Morley  writes:

Personally, I don't like any of those and lean towards excluding
quarter-tones from FretBoards at all and let output the warning 
about

"Missing fret for pitch ~a on string ~a" as before.
Letting only TabStaff display quarter-tones.


I'm of the same opinion as it doesn't/shouldn't really matter
pitchwise where exactly you
place your finger within a fret space on a fretted instrument.


I'm no guitarist, but don't they sometimes pull sideways on the string
or use a mechanical attachment to sharpen a note?


Yes, pull-offs are quite common but it's rather a technique to pluck 
the

string with your fretting hand.  With "mechanical attachment" you're
probably alluding to a capo.  It acts like a sort of artificial
"barre".  It fits around the neck of the guitar and raises the pitch of
all (or only some of the) strings.  LilyPond already displays capo
indications as a thick bar
in fret diagrams.  Bottlenecks are also used to sharpen or lower a
note. It works like some sort of a "movable fret".
But I've never seen quarter tone indications in fret diagrams.

Cheers,
Patrick


I was thinking of things like these:
https://en.wikipedia.org/wiki/Vibrato_systems_for_guitar


BTW: Did you deliberately not reply to the list?


No.  I'm stuck using an unfamiliar web-mail interface while my main 
computer is being repaired; I must have hit the wrong button.  Thanks 
for noticing.

--
Dan


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Re: modify coord-rotate to get exact values for (sin PI) etc (issue 269530043 by thomasmorle...@gmail.com)

2015-10-31 Thread Benkő Pál 
> Just back home, noticing the discussion here.
>
> Current patch tries to solve (or better: workaround) the problem in
> guile.
> I have some other pending patches _needing_ exact values from
> coord-rotate.
> I'd suggest to push it as is (unless some serious defect would be
> detected) after countdown. So that I can go ahead with the follow up
> stuff.
>
> Opinions?

Fine with me.

> Nevertheless, I'd love to work with degrees, rather than radians.
> Though, I can't help implementing it as soon as C++ etc is involved.

I may help with c++.
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Re: quarter tones in tablature - FretBoards

2015-10-31 Thread pls 
d...@faithful.be writes:

> On 2015-10-31 12:49, pls wrote:
>> d...@faithful.be writes:
>>
>>> On 2015-10-31 11:39, pls wrote:
 Thomas Morley  writes:
> Personally, I don't like any of those and lean towards excluding
> quarter-tones from FretBoards at all and let output the warning
> about
> "Missing fret for pitch ~a on string ~a" as before.
> Letting only TabStaff display quarter-tones.

 I'm of the same opinion as it doesn't/shouldn't really matter
 pitchwise where exactly you
 place your finger within a fret space on a fretted instrument.
>>>
>>> I'm no guitarist, but don't they sometimes pull sideways on the string
>>> or use a mechanical attachment to sharpen a note?
>>
>> Yes, pull-offs are quite common but it's rather a technique to pluck
>> the
>> string with your fretting hand.  With "mechanical attachment" you're
>> probably alluding to a capo.  It acts like a sort of artificial
>> "barre".  It fits around the neck of the guitar and raises the pitch of
>> all (or only some of the) strings.  LilyPond already displays capo
>> indications as a thick bar
>> in fret diagrams.  Bottlenecks are also used to sharpen or lower a
>> note. It works like some sort of a "movable fret".
>> But I've never seen quarter tone indications in fret diagrams.
>>
>> Cheers,
>> Patrick
>
> I was thinking of things like these:
> https://en.wikipedia.org/wiki/Vibrato_systems_for_guitar

Yes, electric guitars can be equipped with a whammy bar.  Those effects
usually have their own symbols in traditional notation and
tablature but not in fret diagrams (see attachment).



>
>> BTW: Did you deliberately not reply to the list?
>
> No.  I'm stuck using an unfamiliar web-mail interface while my main
> computer is being repaired; I must have hit the wrong button.  Thanks
> for noticing.

You're welcome!

Patrick
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Re: quarter tones in tablature - FretBoards

2015-10-31 Thread pls 
Thomas Morley  writes:
> Personally, I don't like any of those and lean towards excluding
> quarter-tones from FretBoards at all and let output the warning about
> "Missing fret for pitch ~a on string ~a" as before.
> Letting only TabStaff display quarter-tones.

I'm of the same opinion as it doesn't/shouldn't really matter pitchwise where 
exactly you
place your finger within a fret space on a fretted instrument.


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quarter tones in tablature - FretBoards

2015-10-31 Thread Thomas Morley 
Hi all,

I'm working on "quarter tones in tablature"
https://sourceforge.net/p/testlilyissues/issues/4643/
I've locally some code which does it by modifying `determine-frets'
from translation-functions.scm

Though automatic fret-diagrams in FretBoards rely on it as well.
The problem arises how to print quarter-tones in fret-diagrams and how
to print/format a fret-label.

In the attached image you'll see that in first position the dot moves
within a fret.
In a higher position a fret-label would be needed, though, currently
it's impossible to display a non-integer.
But I could code to put out one of the listed possibilities.

Personally, I don't like any of those and lean towards excluding
quarter-tones from FretBoards at all and let output the warning about
"Missing fret for pitch ~a on string ~a" as before.
Letting only TabStaff display quarter-tones.

Opinions/suggestions?

Cheers,
  Harm
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Re: lilypon.org down

2015-10-31 Thread Jean-Charles Malahieude 

Le 31/10/2015 14:03, bobr...@centrum.is a écrit :

According to:

http://www.downforeveryoneorjustme.com/lilypond.org

It's down.

-David


From: "Jean-Charles Malahieude"


LP.org is down here in France since yesterday afternoon. Are we the only
one?



But download.linuxaudio.org/lilypond/binaries/ is still available…

Chhers,
Jean-Charles


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