Re: Help with String Orchestra Template Please

[Simon Albrecht]

On 06.10.19 23:11, Ben wrote:
> I've never had to use quotes before and I must admit, I am very 
> confused about the syntax. I just consulted the manual and tried to 
> copy and paste some code so I can learn it and tweak it, but I am 
> getting warnings directly from the documentation.
That second example in the docs there is actually a little weird. To the 
documentation’s defense, it does say: “If the music expression used in 
|\quoteDuring| contains notes instead of spacer or multimeasure rests 
then the quote will appear as polyphony and may produce unexpected 
results.” So these warnings are probably what’s meant by ‘unexpected 
results’, but for one thing this kind of ‘quote in parallel’ is 
certainly a very unusual use case; for another we really shouldn’t have 
any examples in our docs that cause warnings (unless maybe that is very 
explicitly stated in the preceding text and serves an important purpose).


> Any chance you know what is going on? I'm finding the whole quote 
> system difficult to wrap my head around. I don't see why (or how?) it 
> works in your divisi code, and I'd like to be able to grasp it.

The second argument to \quoteDuring is a music expression that usually 
consists just of one spacer rest and can hence normally be written 
without surrounding brackets—just like the first argument, a string, can 
now be written without # and "":

\quoteDuring flute s1

means ‘for the duration of one bar (assuming we’re in 4/4) insert the 
notes the flute plays at this time’. Once \quoteDuring has retrieved the 
notes from the flute part, the way they are inserted behaves like this:

\context Bottom <<
  % music retrieved from flute part
  % music supplied as second argument to \quoteDuring
>>

That means: within the current voice, insert the two music expressions 
simultaneously.

If both contain actual rests at the same time, that’s what generates the 
warning, because you’re not supposed to have multiple simultaneous rests 
within one voice.

HTH,
Simon