Re: Automatic annotation of slide positions/fingerings for brass instrum

From:

samarutuk

Subject:

Re: Automatic annotation of slide positions/fingerings for brass instruments.

Date:

Tue, 29 Aug 2023 10:27:14 +0200

User-agent:

Mozilla Thunderbird

Hi,
I am not sure if I understand "iterated music" correctly? Is it about the internal order of processing to get to the PDF score?
In any case, there already does exist "\set printOctaveNames = ##t", which prints the exact note name including pitch (c'…c''…; see also attachment) below every note.
Is it possible to manipulate this function to print the slide position or fingering for a brass instrument instead of the note name?
As I said, I am not a programmer and ChatGPT etc. may need several more years or a decade to be able to do something like this ;-)

Surely some people could benefit from a solution like that. As noted, it would be very handy for educational purposes in general. Of course, you can do it manually, but for more extensive scores it is very tedious, typos can creep in and there is a lot of extra text which makes the Lilypond code more confusing. The manual fingering function is also single digit as far as I know. For brass instruments with valves, you usually need one to three or four digits (see screenshot in attachment) and sometimes also other characters or brackets for alternate fingerings/slide positions.

Kind regards
Andreas

Am 29.08.2023 um 04:37 schrieb Carl Sorensen:

On Mon, Aug 28, 2023 at 6:44 AM samarutuk <samarutuk@aim.com> wrote:

Sorry, I didn't really specify what exactly I was asking.
But your answer was right, thanks!
The final hurdle with your code now is that it doesn't really take pitch into account. C3 (c) has a different default slide position on the trombone than C4 (c'). So no matter if you notate notes absolute or relative in Lilypond, you would always have to use the absolute pitch (also for transposing instruments) as basis, so that the assigned slide positions or fingerings are correct.
Here is my slightly modified code to better illustrate what I mean regarding pitch and different slide positions. Can Lilypond always use the exact pitch to assign slide positions/fingerings to a note?

You need to work on the iterated music, not on the input.

The fret diagram engraver calculates frets and strings from a note pitch. I think that's the analogy you are looking for.

You should probably create a trombone_slide_position_engraver, either as a C++ engraver or as a Scheme engraver. That will be able to see the actual pitch, not the input text.

Carl

\