#3945 warning about starting volume in MIDI and possible workarounds

[Anonymous]

Originally created by: *anonymous

Originally created by: fedel...@gmail.com

Reported by Harm:
http://lists.gnu.org/archive/html/bug-lilypond/2014-05/msg00034.html

Refering to a discussion on the user list, especially:
http://lists.gnu.org/archive/html/lilypond-user/2014-05/msg00425.html
I'd like to report some bugs/enhancements.

First:
the following gives a warning with midi:

\score {
  { c'1\> c' c'\! }
  \midi {}
}

--> (De)crescendo with unspecified starting volume in MIDI.

Though

\score {
  { c'1 c'\> c' c'\! }
  \midi {}
}

does not warn. From a _musical_ point of view I can see no difference
in the starting volume.

Second:
In order to avoid the midi-warning a workaround would be to specify
the starting volume explicitly and hide or omit the
DynamicText.stencil.

{ c'1-\hide\mf\> c' c'\! }
{ c'1-\omit\mf\> c' c'\! }

Though, the Hairpin will start at the right of the now
invisible/non-existent DynamicText [#4837].
I'd think "... the code for typesetting the hairpin should
explicitly check for an _omitted_ stencil (one being #f) and in that
case revert to the anchorless behavior", as David K pointed out.

Third:
According to \omit a shortcut for setting the stencil to point-stencil
may be quite handy.

[Google Importer]

Originally posted by: simon.al...@mail.de

Issue 4104 has been merged into this issue.

[Dan Eble]

(2nd try after reconfiguring git-cl)

http://codereview.appspot.com/294700043

[Anonymous]

Passes make, make check and a full make doc.

[Anonymous]

Patch on countdown for June 12th.

[Anonymous]

Patch counted down - please push.

[Federico Bruni]

0743ea2984c2b705a5e0748721f9ac2e30c575f5