Re: Ossia with dashed span bars

[David Kastrup]

MarcM  writes:

> the   \Staff \RemoveEmptyStaves  makes it easy to place the ossia.
>
> BTW, why use statements like<< \FourOssia >>  when  \FourOssia works as
> well ?

This keeps the ossia stave from becoming the single stave LilyPond keeps
alive when it otherwise would remove every stave.

I'm not sure that this was the actual rationale here, but it is a weird
quirk of LilyPond that might indeed make sense to make use of for ossia
staves.

-- 
David Kastrup

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Re: Staff customization question.

[Paul Morris]

> On Jan 5, 2016, at 11:03 AM, Hwaen Ch'uqi  wrote:
> 
> Yes, I had seen this snippet before. It appears though that this
> function assumes a certain regularity - i.e., by semitones, whole
> tones, etc. In this case, the intervals between pitches are not
> uniform, varying from minor seconds to major thirds. Will this take a
> list of numbers to define each line and space? If so, can I simply
> plug in a series of numbers, or must they be surrounded by parentheses
> and a hash or something? I am quite nervous with Scheme!

For your use-case I would just use a lookup-table (alist) that maps semitones 
to staff positions, as shown in the snippet below.

HTH,
-Paul


\version "2.18"

#(define (my-procedure pitch)
   (let
;; get the semitone of the pitch
((semitone (ly:pitch-semitones pitch))
 ;; lookup-alist maps semitones to positions on the staff
 (lookup-alist
  '((0 . 0)
(2 . 3)
(4 . 6)
(5 . 9)
;; ...edit and add more here as needed
)))
;; for development / debugging to see what semitones you are working with
(display semitone)(newline)
;; lookup the position and return the position that goes with it
(assoc-ref lookup-alist semitone)))

\new Staff \with {
  staffLineLayoutFunction = #my-procedure
} {
  c'4 d' e' f’
}





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Re: When to Use Pound Signs

[Thomas Morley]

2016-01-05 17:15 GMT+01:00 Abraham Lee :
> Jason,
>
> On Tuesday, January 5, 2016, Jason Silver 
> wrote:
>>
>> I wonder if someone would explain the purpose of the pound signs when
>> indicating measurements?
>>
>> For example, this seems to work:
>>
>>   system-system-spacing #'padding = .8
>>
>>
>> But I often see examples with # marks like:
>>
>>   system-system-spacing #'padding = #2
>
>
> The later form (with the #) was how it _used_ to be done, as a Scheme
> requirement, but our awesome developers

David Kastrup

> have been able to eliminate the
> requirement of prefixing numbers using # in recent development versions.

{
  \override Staff.Clef.font-size = .5
  R1
}

still returns an error, as well as

\markup \fontsize 5 "xy"

So there are still limitations.

> Both, however, remain perfectly valid input methods for back-ward
> compatibility. Other kinds of values will likely still need # to work
> properly.
>
> HTH,
> Abraham


In general, whenever you are in LilypPond-syntax and you see/write a
`#' then the parser knows a guile-expression follows and will act
accordingly.

Cheers,
  Harm

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Re: When to Use Pound Signs

[Abraham Lee]

Jason,

On Tuesday, January 5, 2016, Jason Silver 
wrote:

> I wonder if someone would explain the purpose of the pound signs when
> indicating measurements?
>
> For example, this seems to work:
>
>   system-system-spacing #'padding = .8
>
>
> But I often see examples with # marks like:
>
>   system-system-spacing #'padding = #2
>

The later form (with the #) was how it _used_ to be done, as a Scheme
requirement, but our awesome developers have been able to eliminate the
requirement of prefixing numbers using # in recent development versions.
Both, however, remain perfectly valid input methods for back-ward
compatibility. Other kinds of values will likely still need # to work
properly.

HTH,
Abraham
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Re: Staff customization question.

[Hwaen Ch'uqi]

On 1/5/16, Paul Morris  wrote:
>> On Jan 4, 2016, at 8:48 PM, Hwaen Ch'uqi  wrote:
>>
>> Is there a way to create a specific calibration of pitch
>> to line/space where the lowest and highest notes align with the lowest
>> and highest lines?
>
> Briefly, here’s a small hint: setting “staffLineLayoutFunction” in the Staff
> context to a custom scheme procedure is a way to do this.  Try searching the
> LSR for examples of how this is done.
>
> Cheers,
> -Paul
>
>

Yes, I had seen this snippet before. It appears though that this
function assumes a certain regularity - i.e., by semitones, whole
tones, etc. In this case, the intervals between pitches are not
uniform, varying from minor seconds to major thirds. Will this take a
list of numbers to define each line and space? If so, can I simply
plug in a series of numbers, or must they be surrounded by parentheses
and a hash or something? I am quite nervous with Scheme!

Thanks again.

Hwaen Ch'uqi

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When to Use Pound Signs

[Jason Silver]

I wonder if someone would explain the purpose of the pound signs when
indicating measurements?

For example, this seems to work:

  system-system-spacing #'padding = .8


But I often see examples with # marks like:

  system-system-spacing #'padding = #2


Thanks!

Jason Silver


*Yes, We Can Do That!™*
--
*Jason Silver*
CrookedBush.com Inc.
Web Application Development and Hosting

 613.344.1717
jasonsil...@crookedbush.com
CrookedBush.com 
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Re: When to Use Pound Signs

[David Kastrup]

Abraham Lee  writes:

> Jason,
>
> On Tuesday, January 5, 2016, Jason Silver 
> wrote:
>
>> I wonder if someone would explain the purpose of the pound signs when
>> indicating measurements?
>>
>> For example, this seems to work:
>>
>>   system-system-spacing #'padding = .8
>>
>>
>> But I often see examples with # marks like:
>>
>>   system-system-spacing #'padding = #2
>>
>
> The later form (with the #) was how it _used_ to be done, as a Scheme
> requirement, but our awesome developers have been able to eliminate the
> requirement of prefixing numbers using # in recent development
> versions.

Yes and no.  This assignment is expected to appear in a layout block,
and in a layout block it always worked like that.  In fact, if you want
to put a size like 0.8 \cm then you cannot even use Scheme for the
number.  In expressions used in music, 0.8 and 0.8 \cm started working
some time in the more recent past.  However, .8 or 8. still don't work
within music (and probably should never have worked anywhere at any time
if things had been designed sanely) which is not much of a surprise
since 8. needs to be a duration rather than a number.

In layout blocks, those sloppy numbers continue working.

So this is a mixture of sloppy conventions, sloppy history, and sloppy
design.  The general rule was to avoid Scheme numbers in parts of layout
and paper blocks and use them everywhere else.  Context modifications
changed camp from "output block syntax" to "music expression syntax"
also fairly recently and thus will no longer accept 8. or .8 as numbers.

> Both, however, remain perfectly valid input methods for back-ward
> compatibility. Other kinds of values will likely still need # to work
> properly.

There is also some slight difference in meaning for #{ ... #} since it's
not needed for the simplest numbers:

aaa = 8% a number
bbb = #{ 8 #}  % a duration

aaa = -4   % a number
bbb = #{ -4 #} % a fingering event

Is that nice?  Frankly, I doubt it.  It's probably the best compromise
between being useful and being expected.

When a music function gets to see 8 or -4 as one of its input arguments,
its interpretation will depend on the predicate function.  I think that
if the predicate would permit either, the number will win like in the
assignment.  But I don't really remember.

So basically the "awesome developers" were wading through broken glass
barefoot in order to get to a defensible position.

-- 
David Kastrup

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Re: When to Use Pound Signs

[David Kastrup]

Thomas Morley  writes:

> {
>   \override Staff.Clef.font-size = .5
>   R1
> }
>
> still returns an error,

I don't think writing 0.5 is too much to demand.  4. is a duration.

> as well as
>
> \markup \fontsize 5 "xy"
>
> So there are still limitations.

Markup commands don't do contextual interpretation of their arguments
(or default arguments) at all.  They are like they always were.
Frankly, music function arguments were such a horror to get to the state
where they are now...

> In general, whenever you are in LilypPond-syntax and you see/write a
> `#' then the parser knows a guile-expression follows and will act
> accordingly.

Which means that it will just pass the job to the Scheme reader and pick
up after the Scheme reader has consumed one sexp.

-- 
David Kastrup

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Re: When to Use Pound Signs

[Kieren MacMillan]

Hi all,

> Just listed some examples which require #.

While I realise that many situations don’t require # — and I greatly appreciate 
the developer(s)’(s) effort behind that feature/benefit — I still use # before 
every parameter, because I still prefer the way it distinguishes those values 
in the code.

That being said, I have stopped using # with \tweak… so I may eventually come 
around to the “way the kids do it nowadays” in all [possible] situations.

Cheers,
Kieren.


Kieren MacMillan, composer
‣ website: www.kierenmacmillan.info
‣ email: i...@kierenmacmillan.info


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Re: When to Use Pound Signs

[Thomas Morley]

2016-01-05 18:33 GMT+01:00 David Kastrup :
> Thomas Morley  writes:
>
>> {
>>   \override Staff.Clef.font-size = .5
>>   R1
>> }
>>
>> still returns an error,
>
> I don't think writing 0.5 is too much to demand.  4. is a duration.

Agreed and I didn't meant to propose something else.
Just listed some examples which require #.

>
>> as well as
>>
>> \markup \fontsize 5 "xy"
>>
>> So there are still limitations.
>
> Markup commands don't do contextual interpretation of their arguments
> (or default arguments) at all.  They are like they always were.
> Frankly, music function arguments were such a horror to get to the state
> where they are now...
>
>> In general, whenever you are in LilypPond-syntax and you see/write a
>> `#' then the parser knows a guile-expression follows and will act
>> accordingly.
>
> Which means that it will just pass the job to the Scheme reader and pick
> up after the Scheme reader has consumed one sexp.
>
> --
> David Kastrup

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Re: When to Use Pound Signs

[Andrew Bernard]

According to the Unicode Standard 6.2, this is u0023, which is designated 
Number Sign, and also known equivalently as:

pound sign, hash, crosshatch, octothorpe

I have always called it octothorpe, mostly because it is just such a great word!

Andrew


On 6/01/2016, 10:17, "J Martin Rushton" 
 wrote:

Just for the record: "£" is a pound sign, "#" is a hash.  

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Re: When to Use Pound Signs

[Colin Campbell]

On 16-01-05 09:55 PM, Colin Campbell wrote:

I wonder if the spaces delimited by the lines are thorpes? I' also 
carpent for a living, though.





I also wonder how I thought there were eight spaces, not nine, but 
that's probably why I'm an apprentice carpenter!

Colin


--
I've learned that you shouldn't go through life with a catcher's mitt on both 
hands.
You need to be able to throw something back.
-Maya Angelou, poet (1928- )


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Re: When to Use Pound Signs

[Cynthia Karl]

> Message: 6
> Date: Tue, 5 Jan 2016 21:55:42 -0700
> From: Colin Campbell 
> To: lilypond-user@gnu.org
> Subject: Re: When to Use Pound Signs
> Message-ID: <568c9e4e.6060...@shaw.ca>
> 
> On 16-01-05 09:47 PM, Andrew Bernard wrote:
> 
> I wonder if the spaces delimited by the lines are thorpes? I' also 
> carpent for a living, though.

The main problem with that theory is that there are nine such thorps.

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RE: When to Use Pound Signs

[Mark Stephen Mrotek]

"Thorpe" is a Middle English term for a small village. England still has
many towns with that appellation, e.g., Thorpe Willoughby.

M

-Original Message-
From: lilypond-user-bounces+carsonmark=ca.rr@gnu.org
[mailto:lilypond-user-bounces+carsonmark=ca.rr@gnu.org] On Behalf Of
Cynthia Karl
Sent: Tuesday, January 05, 2016 9:09 PM
To: lilypond-user@gnu.org
Subject: Re: When to Use Pound Signs


> Message: 6
> Date: Tue, 5 Jan 2016 21:55:42 -0700
> From: Colin Campbell 
> To: lilypond-user@gnu.org
> Subject: Re: When to Use Pound Signs
> Message-ID: <568c9e4e.6060...@shaw.ca>
> 
> On 16-01-05 09:47 PM, Andrew Bernard wrote:
> 
> I wonder if the spaces delimited by the lines are thorpes? I' also 
> carpent for a living, though.

The main problem with that theory is that there are nine such thorps.

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Re: When to Use Pound Signs

[Colin Campbell]

On 16-01-05 09:47 PM, Andrew Bernard wrote:
According to the Unicode Standard 6.2, this is u0023, which is 
designated Number Sign, and also known equivalently as:


pound sign, hash, crosshatch, octothorpe

I have always called it octothorpe, mostly because it is just such a 
great word!





I wonder if the spaces delimited by the lines are thorpes? I' also 
carpent for a living, though.


Cheers,
Colin


--
Sometimes the thoughts in my head get so bored they go out for a stroll 
through my mouth. This is rarely a good thing.

 - Scott Westerfield

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Re: Staff customization question.

[Hwaen Ch'uqi]

Greetings Paul,

This is EXACTLY what I was looking for: Thank you so much!

Hwaen Ch'uqi


On 1/5/16, Paul Morris  wrote:
>> On Jan 5, 2016, at 11:03 AM, Hwaen Ch'uqi  wrote:
>>
>> Yes, I had seen this snippet before. It appears though that this
>> function assumes a certain regularity - i.e., by semitones, whole
>> tones, etc. In this case, the intervals between pitches are not
>> uniform, varying from minor seconds to major thirds. Will this take a
>> list of numbers to define each line and space? If so, can I simply
>> plug in a series of numbers, or must they be surrounded by parentheses
>> and a hash or something? I am quite nervous with Scheme!
>
> For your use-case I would just use a lookup-table (alist) that maps
> semitones to staff positions, as shown in the snippet below.
>
> HTH,
> -Paul
>
>
> \version "2.18"
>
> #(define (my-procedure pitch)
>(let
> ;; get the semitone of the pitch
> ((semitone (ly:pitch-semitones pitch))
>  ;; lookup-alist maps semitones to positions on the staff
>  (lookup-alist
>   '((0 . 0)
> (2 . 3)
> (4 . 6)
> (5 . 9)
> ;; ...edit and add more here as needed
> )))
> ;; for development / debugging to see what semitones you are working
> with
> (display semitone)(newline)
> ;; lookup the position and return the position that goes with it
> (assoc-ref lookup-alist semitone)))
>
> \new Staff \with {
>   staffLineLayoutFunction = #my-procedure
> } {
>   c'4 d' e' f’
> }
>
>
>
>
>

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Re: When to Use Pound Signs

[Nathan Ho]

On 2016-01-05 20:55, Colin Campbell wrote:

On 16-01-05 09:47 PM, Andrew Bernard wrote:
According to the Unicode Standard 6.2, this is u0023, which is 
designated Number Sign, and also known equivalently as:


pound sign, hash, crosshatch, octothorpe

I have always called it octothorpe, mostly because it is just such a 
great word!





I wonder if the spaces delimited by the lines are thorpes? I' also
carpent for a living, though.


Fun fact -- the term "octothorpe" was completely fabricated and doesn't 
have an etymology. It started out as an in-joke at Bell Labs: 
http://dougkerr.net/Pumpkin/articles/Octatherp.pdf


A lot of young people today call the symbol a "hashtag." Some might 
scoff at this since a hashtag is an application of a hash and not the 
symbol itself, but hey, metonymy is metonymy.


Nathan

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Re: OOoLilyPond

[Roman Stawski]

On 05/01/2016 21:52, Noeck wrote:

Hi Roman,

I also use OOoLilyPond often and had to check immediately when I read
your mail. I am using LibreOffice 5.0.2.2 and OOoLilypond 4.0.0 and it
still works for me. What is actually happening when you insert a new
snippet?

Cheers,
Joram


Hello Joram

When I hit the lilypond button the console popped up as usual to run 
Lilypond, finished correctly and disappeared. The OOoLP dialogue stayed 
open. When I looked at the LP output, everything had compiled fine. 
There were no errors.


Debugging the macro, I found in the OOoLilypond/Make routine that after 
compilation it was looking for OOoLilyPond.eps in the temp directory. In 
reality I had OOoLilyPond-1.eps, OOoLilyPond-2.eps and OOoLilyPond-3.eps 
... but no OOoLilyPond.eps, so the routine just exited. I commented this 
out since the only file I'm interested in is OOoLilyPond.png which was 
there, and was included next. Debugging further kept throwing out errors 
in LibreBasic ... so I gave up.


Current state is that its now inserting the image ... but holding the 
image source open (even if I delete the image from the document). This 
means that the next run of OOoLP fails because it can't delete the 
source from the previous run.


I'm managing to make it work by unlocking the file, but optimal it's not.

Santé,
Roman

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OOoLilyPond

[Roman Stawski]

Hi folks

I upgraded to LibreOffice 4.3 recently and now I'm having problems in
getting OOoLilypond to actually insert a snippet although the generation
works fine. FWIW I'm using Lilypond 2.19.33.

Is anyone still using OOoLilypond? If so have they come across the problem,
and do they have a workaround.

Sorry if this is off-subject (OOoLP and not LP itself), but for me it's
always been one of the killer features of lilypond that I can plug snippets
directly into a text document. It would be a shame if it's no longer available.

Thanks for any pointers


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Re: OOoLilyPond

[Noeck]

Hi Roman,

I also use OOoLilyPond often and had to check immediately when I read
your mail. I am using LibreOffice 5.0.2.2 and OOoLilypond 4.0.0 and it
still works for me. What is actually happening when you insert a new
snippet?

Cheers,
Joram

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Re: When to Use Pound Signs

[J Martin Rushton]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1



On 05/01/16 23:42, David Bellows wrote:
> According to the Wikipedia article 
> (https://en.wikipedia.org/wiki/Number_sign) in North America
> referring to # as "pound sign" dates back to at least 1932 in
> published material which predates ASCII by almost 30 years. The
> Wikipedia article provides a citation for this but I am unable to
> verify it. But I will note that I first learned it as "pound sign"
> in the early '70s which I doubt had anything to do with computer
> standards.

Interesting, but see also https://en.wikipedia.org/wiki/Pound.  you'll
note of course the irony that you are quoting a page entitled "Number
sign" no doubt!

> On Tue, Jan 5, 2016 at 3:17 PM, J Martin Rushton 
>  wrote: Just for the record: "£" is
> a pound sign, "#" is a hash.  Calling the hash sign a pound sign
> goes way back to the days of ASCII-7 and national ASCII variants.
> The UK national variant had a pound sign where plain ASCII had a
> hash.  If anyone is _really_ interested, the £ sign is a capital
> "L" (for libra, Latin for a pound) with a line through it, a bit
> like dollars and letter "S".
>> 
>> ___ lilypond-user
>> mailing list lilypond-user@gnu.org 
>> https://lists.gnu.org/mailman/listinfo/lilypond-user
> 
> ___ lilypond-user
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> https://lists.gnu.org/mailman/listinfo/lilypond-user
> 
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Re: When to Use Pound Signs

[J Martin Rushton]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Just for the record: "£" is a pound sign, "#" is a hash.  Calling the
hash sign a pound sign goes way back to the days of ASCII-7 and
national ASCII variants.  The UK national variant had a pound sign
where plain ASCII had a hash.  If anyone is _really_ interested, the £
sign is a capital "L" (for libra, Latin for a pound) with a line
through it, a bit like dollars and letter "S".
-BEGIN PGP SIGNATURE-
Version: GnuPG v2.0.22 (GNU/Linux)

iQIcBAEBAgAGBQJWjE74AAoJEAF3yXsqtyBlVL4QAL/QEuFJTWMElZMCxJi0ui7N
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Re: When to Use Pound Signs

[David Bellows]

According to the Wikipedia article
(https://en.wikipedia.org/wiki/Number_sign) in North America referring
to # as "pound sign" dates back to at least 1932 in published material
which predates ASCII by almost 30 years. The Wikipedia article
provides a citation for this but I am unable to verify it. But I will
note that I first learned it as "pound sign" in the early '70s which I
doubt had anything to do with computer standards.



On Tue, Jan 5, 2016 at 3:17 PM, J Martin Rushton
 wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> Just for the record: "£" is a pound sign, "#" is a hash.  Calling the
> hash sign a pound sign goes way back to the days of ASCII-7 and
> national ASCII variants.  The UK national variant had a pound sign
> where plain ASCII had a hash.  If anyone is _really_ interested, the £
> sign is a capital "L" (for libra, Latin for a pound) with a line
> through it, a bit like dollars and letter "S".
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RE: When to Use Pound Signs

[Mark Stephen Mrotek]

What you term the pound sign, derives from the Latin libra, pound. The word was 
altered into livre, £ (1550's), as a French monetary amount equal to one pound 
of silver. The unit of measure was changed to the term franc. Today the same 
symbol is used as designation for the English pound - at one time worth one 
pound sterling.

Mark

-Original Message-
From: lilypond-user-bounces+carsonmark=ca.rr@gnu.org 
[mailto:lilypond-user-bounces+carsonmark=ca.rr@gnu.org] On Behalf Of J 
Martin Rushton
Sent: Tuesday, January 05, 2016 3:17 PM
To: lilypond-user@gnu.org
Subject: Re: When to Use Pound Signs

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Just for the record: "£" is a pound sign, "#" is a hash.  Calling the hash sign 
a pound sign goes way back to the days of ASCII-7 and national ASCII variants.  
The UK national variant had a pound sign where plain ASCII had a hash.  If 
anyone is _really_ interested, the £ sign is a capital "L" (for libra, Latin 
for a pound) with a line through it, a bit like dollars and letter "S".
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Re: When to Use Pound Signs

[Kieren MacMillan]

Hi,

> Just for the record: "£" is a pound sign, "#" is a hash
> Calling the hash sign a pound sign goes way back to the days
> of ASCII-7 and national ASCII variants.


Actually, the use of # as a “pound sign” goes back at least to 1850: 
.

I prefer octothorpe, which is [as far as I can tell] completely unambiguous.

Cheers,
Kieren.


Kieren MacMillan, composer
‣ website: www.kierenmacmillan.info
‣ email: i...@kierenmacmillan.info


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Re: When to Use Pound Signs

[J Martin Rushton]

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1



On 05/01/16 23:51, Mark Stephen Mrotek wrote:
> What you term the pound sign, derives from the Latin libra, pound.
> The word was altered into livre, £ (1550's), as a French monetary
> amount equal to one pound of silver. The unit of measure was
> changed to the term franc. Today the same symbol is used as
> designation for the English pound - at one time worth one pound
> sterling.
> 
> Mark
Not just French.  It was common across most of Europe, ultimately
deriving from the Charlemangne's currency reforms which sought to
invoke the Roman Empire's authority.
> -Original Message- From:
> lilypond-user-bounces+carsonmark=ca.rr@gnu.org
> [mailto:lilypond-user-bounces+carsonmark=ca.rr@gnu.org] On
> Behalf Of J Martin Rushton Sent: Tuesday, January 05, 2016 3:17 PM 
> To: lilypond-user@gnu.org Subject: Re: When to Use Pound Signs
> 
> Just for the record: "£" is a pound sign, "#" is a hash.  Calling
> the hash sign a pound sign goes way back to the days of ASCII-7 and
> national ASCII variants.  The UK national variant had a pound sign
> where plain ASCII had a hash.  If anyone is _really_ interested,
> the £ sign is a capital "L" (for libra, Latin for a pound) with a
> line through it, a bit like dollars and letter "S".
> 
> ___ lilypond-user
> mailing list lilypond-user@gnu.org 
> https://lists.gnu.org/mailman/listinfo/lilypond-user
> 
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