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Re: engraving rules question - voices with merged heads
From: |
James Bailey |
Subject: |
Re: engraving rules question - voices with merged heads |
Date: |
Sat, 29 Jan 2011 12:00:50 +0100 |
On Jan 29, 2011, at 11:25 AM, Janek Warchoł wrote:
> 2011/1/29 James Bailey <address@hidden>:
>>
>> On Jan 29, 2011, at 12:17 AM, Janek Warchoł wrote:
>>
>>> Hi,
>>>
>>> recently i was told that this notation
>>>
>>> { \mergeDifferentlyHeadedOn << b'2 \\ { b'8 a' g' f' } >> }
>>>
>>> is not allowed in vocal music (i.e., the noteheads shouldn't be
>>> merged). Is that true?
>>
>> correct. you shouldn't merge heads in vocal music.
>
> Interesting. Is that true also when both voices have filled noteheads, i.e.
>
> { << { b'4 g' } \\ { b'8 a' g' f' } >> }
>
> ?
> Here LilyPond merges noteheads automatically, and i don't remember any
> simple means to switch that off.
>
> Thanks,
> Janek
This is different. One voice has a beam, while the other doesn't. There isn't
any way to mistake a half note for a quarter note in this case, as is the case
in the other. Here, it is perfectly acceptable to merge noteheads. The idea is
to make reading the music possible. With vocal music, two (or more) people will
be looking at the notes. with different heads merged, there's no way to tell
the rhythmic value of the merged notehead. in this case, because
differently-valued noteheads are never merged for vocal music, it's quite clear
that voice one must be a quarter note. Here, there's no need to switch that off
because there's no ambiguity. Two scans for added clarity.
Re: engraving rules question - voices with merged heads, Keith OHara, 2011/01/29