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Re: When (in seconds) does each page begin?
From: |
Matt Wallis |
Subject: |
Re: When (in seconds) does each page begin? |
Date: |
Thu, 28 May 2020 20:40:49 +0100 |
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Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.8.1 |
On 28/05/2020 19:29, Valentin Villenave wrote:
On 5/28/20, Matt Wallis <m7956@acumen-it.co.uk> wrote:
I would like to obtain timing information to tell me at how many seconds
into the score each page begins. I have had a go at this, and failed.
If you’re trying to make videos out of LilyPond scores, here are some
links for you:
https://lists.gnu.org/archive/html/lilypond-user/2020-03/msg00275.html
https://lists.gnu.org/archive/html/lilypond-user/2020-03/msg00276.html
https://lists.gnu.org/archive/html/lilypond-user/2017-11/msg00098.html
https://lists.gnu.org/archive/html/lilypond-user/2017-07/msg00234.html
https://gitlab.com/sigmate/lilypond-html-live-score
(That doesn’t answer your question, but others will certainly chime in :-)
Many thanks for the links. Some of them I have seen before, but I'm not
keen on a solution that requires patching lilypond. The others, I will
look into.
Yes- as you suspected, I want to make videos. My initial needs are very
basic - just to display each page at the correct time. I currently get
the timings from a simple script that plays the audio, and I press
'enter' each time the page of the score changes, to record the timing.
But I want to automate this. With that timing data alone, I can produce
very basic videos that meet my (initial) requirements.
The output from event-listener is so close. I just need to get it to
listen to the appropriate events ... if that is possible.
Maybe I'll want to colour notes too at some point :-) Perhaps those
links will answer the next question: Can I dump out from lilypond the
following information for each note:
note start time;
note duration;
co-ordinates of the centre of the note on the PNG created by lilypond
I think that's all the data needed from lilypond in order to create a
quite nice video with note highlighting.
How difficult can that be? :-) Is it the case that this can't be
triggered neatly from a note event, because when the note event is
received, the engravers have not yet decided where on the score that
note should be put?
Matt