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Re: Quoting quoted material fails

From: Jean Abou Samra
Subject: Re: Quoting quoted material fails
Date: Tue, 17 Aug 2021 10:50:09 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0


Le 11/08/2021 à 15:07, Mats Bengtsson a écrit :

This is probably more of a limitation than a bug, but should at least be documented. If you try to quote a voice that itself contains quoted material, the nested quote fails (without any warning message).

Here's a reasonably minimal example.

\version "2.23.3"

A = \fixed c' {c4 d e f | g f e d | c1 }
\addQuote "A" {\A }

B = \fixed c' {\quoteDuring "A" s1 | g1 | \quoteDuring "A" s1 }
\addQuote "B" {\B}

% The first measure that attempts to quote quoted material is empty:
C = \fixed c' {\quoteDuring "B" s1*2 | e1 }

  \new Staff \A
  \new Staff \B
  \new Staff \C

Thanks for your report — and nice to see a former contributor
lurking around! Here is a fresh ticket:


I propose to add a sentence under Known issues and warnings in http://lilypond.org/doc/v2.23/Documentation/notation/writing-parts#quoting-other-voices, saying,

"Quoting music that itself contains quoted sections does not work."

Well, the contributor's guide [1] prescribes adding these warnings
for architectural issues that are known to be thorny or
half-bug-half-feature. Let's see how others respond on the ticket
(note that I know nothing about the operation of the Quote_iterator).

[1] http://lilypond.org/doc/v2.23/Documentation/contributor/section-organization

I would also be happy if the possibility to do nested quotes could be recorded as a feature request. I just typeset a concerto grosso, where I in the ripieni string parts quoted sections from the solo string parts and where the woodwind parts were almost identical to the ripieni string parts and i hence tried to quote these, which resulted in mostly empty music, to my great surprise and disappointment. Apart from such use cases, I would expect that it could a more common problem when adding cue notes using \cueDuring of parts that themselves contain quoted material.

Feature request is a nice wording. I'd just consider it
a bug ;-)


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