Jacques Menu <imj-muz...@bluewin.ch> writes:
>> Le 1 mai 2019 à 10:01, David Kastrup <d...@gnu.org> a écrit :
>>
>> Jacques Menu <imj-muz...@bluewin.ch> writes:
>>
>>> Unfortunately, \transposition can only be used when the notes are written
>>> in «
>>> instrument » pitch, not concert pitch.
>>
>> Says who?
>
> The LPNR:
>
> The pitch to use for \transposition should correspond to the real
> sound heard when a c' written on the staff is played by the
> transposing instrument. This pitch is entered in absolute mode, so an
> instrument that produces a real sound which is one tone higher than
> the printed music should use \transposition d'. \transposition should
> only be used if the pitches are not being entered in concert pitch.
After using \transpose, they are not in concert pitch.
>> BTW, it could be better named as something like
>>> \transposingInstrument, it seems.
>>
>> Why?
>
> Would be more explicit: transposition can be understood as the act of
> transposing,
"transposition" is not a verb. And it describes the relation between
printed pitch and Midi pitch without necessarily referring to an
instrument.
> whereas \transpose exists too.
>
>> I started by writing the code to obtain the same score as the
>>> manuscript shown below, where the first staff is written for a viola,
>>> hence my notes are in concert pitch.
>>>
>>> Then I added \transpose to have it printed for an oboe d'amore:
>>>
>>>
>>> But then I can no longer proof it by ear without changing the MIDI
>>> output too, which I don’t know how to do.
>>
>> With \transposition .
>
> I did various attempts at that, but was unsuccessful.
>
>> I’d prefer to keep the notes unchanged, in concert pitch, instead of
>>> modifying them - hence my post.
>>
>> How about a minimal example exhibiting the problem?
>
> I extracted the first two measures so that the phenomenon is clear, sorry if
> that’s a bit long.
>
> Comment the line :
>
> \transpose a c' % <<<<<<========= HERE
>
> to hear the music as it I need it to sound.
>
> JM
>
>
> %%%%%%%%%%%%%
>
> \version "2.19.82"
>
> Part_POne_Staff_One_Voice_One = \relative {
> \partial 2
> \key bes \major
> \numericTimeSignature \time 3/2
> g'2 | % 1
> g1 g2 | % 2
> }
>
> Part_PTwo_Staff_One_Voice_One = \relative {
> \partial 2
> \key bes \major
> \numericTimeSignature \time 3/2
> \clef "bass"
> ees'2 | % 1
> d1 ees2 | % 2
> }
>
> Part_PThree_Staff_One_Voice_One = \relative {
> \partial 2
> \key bes \major
> \numericTimeSignature \time 3/2
> \clef "bass"
> c'2 | % 1
> b!1 c2 | % 2
> }
>
> \score {
> <<
>
> \new StaffGroup <<
>
> \new Staff = "Part_POne_Staff_One"
> \with {
> instrumentName = "Hautbois d'amour"
> }
> <<
> \context Voice = "Part_POne_Staff_One_Voice_One" <<
> \transpose a c' % <<<<<<========= HERE
> \Part_POne_Staff_One_Voice_One
> >>
> >>
> \new Staff = "Part_PTwo_Staff_One"
> \with {
> instrumentName = "Basson 1"
> }
> <<
> \context Voice = "Part_PTwo_Staff_One_Voice_One" <<
> \Part_PTwo_Staff_One_Voice_One
> >>
> >>
>
> \new Staff = "Part_PThree_Staff_One"
> \with {
> instrumentName = "Basson 2"
> }
> <<
> \context Voice = "Part_PThree_Staff_One_Voice_One" <<
> \Part_PThree_Staff_One_Voice_One
> >>
> >>
>
> >>
>
> >>
>
> \layout { }
>
> \midi {
> \tempo 2 = 90
> }
> }
>
> %%%%%%%%%%%%%
>
I hear nothing wrong with
\version "2.19.82"
Part_POne_Staff_One_Voice_One = \relative {
\partial 2
\key bes \major
\numericTimeSignature \time 3/2
g'2 | % 1
g1 g2 | % 2
}
Part_PTwo_Staff_One_Voice_One = \relative {
\partial 2
\key bes \major
\numericTimeSignature \time 3/2
\clef "bass"
ees'2 | % 1
d1 ees2 | % 2
}
Part_PThree_Staff_One_Voice_One = \relative {
\partial 2
\key bes \major
\numericTimeSignature \time 3/2
\clef "bass"
c'2 | % 1
b!1 c2 | % 2
}
\score {
<<
\new StaffGroup <<
\new Staff = "Part_POne_Staff_One"
\with {
instrumentName = "Hautbois d'amour"
}
<<
\context Voice = "Part_POne_Staff_One_Voice_One" <<
\transposition a
\transpose a c' % <<<<<<========= HERE
\Part_POne_Staff_One_Voice_One
>>
>>
\new Staff = "Part_PTwo_Staff_One"
\with {
instrumentName = "Basson 1"
}
<<
\context Voice = "Part_PTwo_Staff_One_Voice_One" <<
\Part_PTwo_Staff_One_Voice_One
>>
>>
\new Staff = "Part_PThree_Staff_One"
\with {
instrumentName = "Basson 2"
}
<<
\context Voice = "Part_PThree_Staff_One_Voice_One" <<
\Part_PThree_Staff_One_Voice_One
>>
>>
>>
>>
\layout { }
\midi {
\tempo 2 = 90
}
}
%%%%%%%%%%%%%
--
David Kastrup
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