David Kastrup <d...@gnu.org> schrieb:
>Colin Tennyson <colintenny...@outlook.com> writes:
>
>> The LillyPond parser accepts this, there is no error, and the score
>_is
>> rendered correctly_.
>> But as you point out:
>> this:
>> << \addKey \staffOneNotes >>
>> is better written as:
>> { \addKey \staffOneNotes }
>>
>>
>> While the { ... } notation is better, LilyPond accepts both: {
>\addKey
>> \staffTwoNotes } and << \addKey \staffTwoNotes >>. In this case both
>are
>> rendered the same.
>
>But that's not a given. Take, for example, the output of
>
>
>------------------------------------------------------------------------
>
>
>Also, if you have something like
>
>\new StaffGroup
>{
> << \key c\major { c' c' c' c' } >>
>}
>
>you'll likely be surprised by the results...
Colin, your example works because you have exactly one music expression inside
the angled brackets.
These let you enter multiple expressions that are interpreted in parallel. And
if there is just one expression inside it just does nothing.
HTH
Urs
--
Urs Liska
openlilylib.org
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