Re: simultaneous tempo-change events

[Federico Bruni]

2014-06-02 15:56 GMT+02:00 Knute Snortum <address@hidden>:

> That's fine.  It just took me a couple of minutes to figure out that it was
> the compile last measures feature making the warning.  Maybe a note in the
> documents saying that the feature can produce oddities.
>

In NR 3.4.2:

"This property is also used to control output to the MIDI file. Note that
it skips all events, including tempo and instrument changes. You have been
warned."

Well, this sentence is about the property Score.skipTypesetting (not
showLastLength).
It seems that it doesn't actually skips the tempo changes. In the example
below, the last bar is compiled, but the first tempo is printed and I get
the warning we are discussing here. I get the same result if I comment
skipTypesetting and uncomment showLastLength.

\version "2.19.7"

%showLastLength = R1

\relative c' {
  \set Score.skipTypesetting = ##t
  \tempo 4 = 80
  c4 c c c

  \set Score.skipTypesetting = ##f
  \tempo 4 = 90
  d4 d d d

}

Documentation should be changed, I guess... Another example:

\version "2.19.7"

\relative c' {
  c1
  \set Score.skipTypesetting = ##t
  \tempo 4 = 80
  c4 c c c

  \set Score.skipTypesetting = ##f
  d4 d d d
}