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Re: music function to be included somewhere in scm/*

From: Alexander Kobel
Subject: Re: music function to be included somewhere in scm/*
Date: Thu, 15 Dec 2016 17:45:45 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Icedove/45.4.0

On 2016-12-15 17:19, Trevor Daniels wrote:
Knut Petersen wrote Thursday, December 15, 2016 1:55 PM

minimum-length in my patch means:
- Don't generated automatic extenders if it's impossible to give them 
- Use minimum-length for forced extenders at unusual places (single note) if 

I think the most reasonable way is to keep that traditional name.

I don't understand what you mean for the proposed behaviour.

Currently, I set minimum-length = 0 in all Lyric contexts so that I
can place identical lyrics in several voices, all with extenders, but
the extenders appear in the score only when they correspond to melismata.

With the effect that sometimes you'll have extenders that are merely flyspecks, yes.

In other words the extender is permitted to reduce in size to 0, which
seems pretty well what "minimum-length" means.

Will this behaviour change with your proposed patch?

Yes: it will improve.

(1) You can put the lyrics to all voices, as extenders are only printed on melismata (unless explicitly enforced). (2) You don't have to add __ in your lyrics anymore - it's done automagically (unless explicitly disabled). (3) minimum-length (or some other name) is used to control appearance (right now, you "abuse" it to fake semantics).

Explanation for (3): On short melismata you'll often want to hide extenders if the syllable has (almost) the same horizontal extent as the music. That's dependent on line breaks etc., so you'll optimally want a minimum-length /strictly/ larger than 0 (to ensure that you don't have the previously mentioned flyspecks), but smaller than, say, 2 staff spaces. So extenders that have a natural length of 2 units are printed, shorter ones aren't. IMHO, setting minimum-length to 0 is an ingenious workaround for a missing functionality (namely, disabling extenders on non-melismata), but it means that you lose the functionality it is intended for.

AFAICS, nothing will change for your existing scores.


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