Micah Walter <[email protected]> writes:
> In Lilypond, there is a distinction between specifying \key c \major and
> leaving the key blank.
Not really.
> In the former case, transposing instruments will change the key
> signature accordingly, while in the latter case, no key signature will
> be added. Using \transpose c d, for instance, will add two sharps if
> \key c \major is listed, but not when no key is listed.
>
> What happens when I go from an ‘open key’ section to a tonal section, and
> back to ‘open key’? I've tried\revert \key, but this seems to be bad
> syntax. Is there a way to revert to a key-free area?
>
> Minimal example, which should have a key signature of one flat in the
> second section but no sharps or flats elsewhere:
>
> \transpose c d {
> % Open key
> c8 e f g e d des c
>
> \key c \minor
> c es g es f d c b
>
> % How to return to open key??
> c8 e f g e d des c
> }
Well, you could do something like
\withMusicProperty #'untransposable ##t \key c\major
It's not terribly fabulous, but possibly will do the trick.
--
David Kastrup
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