Re: Reheaseals with irregular bars

[Wim van Dommelen]

Hi Jacques,

Difficult for me to answer, because I don't know the programmer internals of LP to give you a correct answer. Also I see in reality different kinds of numbering also in scores done by commercial publishers. For example the numbering of the bars underneath the first repeat alternatives is done in several ways. I don't know if there is any agreement on how it "should" be done. Sometimes engravers continue the numbering, sometimes these bars are numbered the same. In your example as you change the length of a measure, should one still count is a one (1) complete measure, or count it as partial (3/4) or whatever. In general one can only code in any program (including LP) what you can write down in an algorithm to start with. And such an algorithm needs firm rules: if <this situation> then <we do that>, etc.

In the past I've seen multiple situations in which LP didn't know the right number (as I think it should be) anymore because of changes (partial measures, etc.), so then I did set it right manually. After all the musical score is my goal.

Maybe someone with internals knowledge on the bar-numbering can look at this?

And/Or from a musical theoretical point: what are the rules for this?

One remark on your code: You mention you use the measureLength in LP 2.17. That trick is already available in earlier versions, but then your code states "2.15.11". Be carefull mixing things you would think (assume) would work from one version into another. Here it works because it was already available, but in other situations you might have some surprises.

Regards,

Wim.

On 5 Nov 2012, at 07:20 , Jacques Menu wrote:

Hello Wim,

Going further on my work, I bumped into irregular alternatives too. I spent much time struggling with bars 8 and 17, even knowing there was a bug to be circumvented.

The solution was to set Timing.measureLength explicitly in the alternatives, which I found in the doc of LP 2.17.

I can't imagine, though, that nobody ran into this before me.

My question is thus : can't LP keep track of what's going on in the alternatives and figure out what the partial bars lengths are?

The example is attached.

Thanks for your help and time!

Le 29 oct. 2012 à 10:54, Wim van Dommelen <address@hidden> a écrit :

Hi Jacques,

There is a LP problem in the bar numbers in this case (which I really should register as a bug, it increases the measure numbers twice for some reason). 

<JMRehearsals.ly>

Regards,

--

Jacques Menu
Ch. de la Pierre 12
1023 Crissier

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