Re: Transposition

[Tom van der Hoeven]

Kieren and Noeck,
Thanks for the answers.
I worked already with the function \transpose and that works excellent.
My question concerned the use of the tag \transposition.
I wondered why it was used for two specific cases and not for the general case.
Given both answers it seems that I haven't overlooked anything.
I am not looking for a new scheme function.............
In the example of Kieren it is not clear to me what the added value is of \transition in trapII and trapIII

Tom
-------------------
Hi Tom,

I have a piece of music written in different transpositions. 
I want to transform it to a piece in one transposition. 

Likely, a nice Scheme function or engraver could work that out for you. Unfortunately, that's beyond my [essentially non-existent] Scheme-fu…

In the absence of that type of solution, perhaps something like this would work for you?

\version "2.19.80"

trapI = \relative c' { a }
trapII = \relative c' { \transposition f' c e g f bes }
trapIII = \relative c' { \transposition bes' c e }

{
  \trapI
  \trapII
  \trapIII
}

{
  \trapI
  \transpose c f, \trapII
  \transpose c bes, \trapIII
}

Ultimately, I would recommend always trying to enter your music in concert pitch, if possible — you can use tools like Frescobaldi to make this easier.

Hope this helps!
Kieren.

Op 9-1-2018 om 21:34 schreef Noeck:

Hi Tom,

many people confuse \transposition with \transpose. They have different
use cases. Hopefully, \transpose will help you:

http://lilypond.org/doc/v2.19/Documentation/notation/changing-multiple-pitches.html#transpose

Cheers,
Joram

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