Update documentation for what's supported in MIDI. (issue 3740)

[lilypond.git] / Documentation / changes.tely

diff --git a/Documentation/changes.tely b/Documentation/changes.tely
index 0c957561725956cf5fb5a783a487a6019d628f2d..5697aa69cb097c4aa439125f87919b9d984e4909 100644 (file)
--- a/Documentation/changes.tely
+++ b/Documentation/changes.tely
@@ -61,6 +61,29 @@ which scares away people.
 
 @end ignore
 
+@item
+The most common articulations are now reflected in MIDI output.
+Accent and marcato make notes louder; staccato, staccatissimo and
+portato make them shorter. Breath marks shorten the previous
+note.
+
+This behavior is customizable through the @code{midiLength} and
+@code{midiExtraVelocity} properties on @code{ArticulationEvent}.
+See @file{script-init.ly} for examples.
+
+@item
+The PostScript functionality of stroke adjustment is no longer
+applied automatically but left to the discretion of the PostScript
+device (by default, Ghostscript uses it for resolutions up to
+150dpi when generating raster images).  When it is enabled, a more
+complex drawing algorithm designed to benefit from stroke
+adjustment is employed mostly for stems and bar lines.
+
+Stroke adjustment can be forced by specifying the command line
+option @samp{-dstrokeadjust} to LilyPond.  When generating
+@code{PDF} files, this will usually result in markedly better
+looking @code{PDF} previews but significantly larger file size.
+Print quality at high resolutions will be unaffected.
 
 @end itemize