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Re: hidenotes bug

From: Erik Sandberg
Subject: Re: hidenotes bug
Date: Tue, 18 Jan 2005 10:19:27 +0100
User-agent: KMail/1.7.1

On Tuesday 18 January 2005 09.46, johannes schöpfer wrote:
> hi,
> ok, i wrote a lousy bug-report.
> when i compile the code i get things like:
> lilybug.ly:38:34: warning: Can't have rests and note heads together on a
> stem.:
>    <<{\tieUp c,8\noBeam~\hideNotes
>                                    c}{s8 r}>>\unHideNotes
> [5]
> Preprocessing graphical objects...
> Calculating line breaks... [3][5]
> warning: Could not find line breaking that satisfies constraints.
> warning: Could not find line breaking that satisfies constraints.
> but that doesn't hurt me because i get output.
> my problem is that i get two quarter-notes(second line in the pdf-ouput)
> but there is no quarter-note in my code.

What looks like quarter notes, is simply beamed eighth notes. But the second 
eighth is hidden, which hides the beam as well.

What might be confusing is that the auto beamer inserts beams in a way you 
wouldn't expect. This is for the same reason as you get warnings: you need a 
separate voice for the rests, since you can't have a rest and a note head 
together on a stem. 

If you remove all hideNotes commands, it will be easier to follow what's 


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