Frescobaldi Feature Request: p&c position in midi player

[sciurius]

Would it be possible for frescobaldi to have point&click adjust the midi player to the correct position (or measure)?

[wbsoft]

This involves quite a lot of heuristic, unless LilyPond would insert special events in the MIDI stream (point&click events). But as Frescobaldi's music reading capabilities improve, we could try to understand in which measure the text cursor is, and make some prediction as where to move the MIDI player.

[wbsoft]

we now have infrastructure to determine the position of the text cursor, so this may come closer...

[fedelibre]

I can't find the issue about highlighting notes during playback, a feature very similar to this one.
I thought there was already an issue but I can't find it.
edit: found, it's #585

[andruo11]

This can be done by putting \include "event-listener.ly" at the top of your ly file and setting -dbackend=svg when you call the lilypond command on it. Then you can scan the output .svg & .notes files for identical point-and-click entries. The svg gives you an area of the page you can light up, and the notes entry gives you a timestamp. One clue: if you have /unfoldRepeats in your midi you should be sure to replace /repeat volta with /repeat unfold in your .ly files.

[andruo11]

I have a demo Javascript/HTML program working that links the MIDI notes to event-listener.ly text notes and SVG objects in the way described above.
http://www.picatino.com/piano_typewriter/

[gasparka]

The lack of this feature makes Frescobaldi quite hard to use.
It does not need to be fancy, text field specifying where the MIDI playback should start would go a long way.