> On 23 Jul 2015, at 19:09, Richard Shann <[email protected]> wrote:
>
> On Thu, 2015-07-23 at 19:40 +0200, Urs Liska wrote:
>>> Am 23.07.2015 um 19:15 schrieb Christopher R. Maden:
>>>> They will look different, but will be the same notes. The music
>>>> describes itself; the key signature affects presentation.[*]
>>>>
>>> That’s true and I think that this is one of LilyPonds strengths as
>> it
>>> allows to be very flexible with transposing, quoting, changing key
>>> signatures etc.
>>
>> I think so too.
>> However, there *are* programs/formats that "think" differently. I know
>> of Amadeus an midt notably MEI where you basically write diwn what you
>> *see*. If not explicitly altered the actual pitch is determined by the
>> key signature.
>
> presumably not just the key signature but also any preceding altered
> pitches in the same bar. Denemo allows this method of entry by default,
> for a series of f-sharps in a bar only the first needs a keypress to say
> it is a sharp, subsequent presses of the key "f" enter f-sharps, until
> the end of the bar. Of course, it emits the (more verbose) fis syntax
> for each note, but it saves typing on entry.
>
> Richard
It seems to me that the replies so far are missing the OP’s underlying
misunderstanding of the way in which Lilypond interprets the pitches that are
entered.
G natural is entered thus: { g }
G sharp is entered thus: { gis }
G flat is entered thus: { ges }
(assuming the default Dutch convention for sharps and flats).
Following a key signature such as G major, the G natural will have no
accidental, but the other two will have sharp and flat signs.
In the case of A major, G natural will have a natural sign, the G sharp will
have no accidental and the G flat with have a flat sign.
Similarly if the key signature says G flat major, the G natural and G sharp
will each have an accidental, and the G flat will have none.
So the rule is that you enter your music as if the key signature were C major,
and Lilypond will display the music correctly if you subsequently choose a
different key signature.
Michael
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