Re: midi2ly

[Jonathan Kulp]

Hi Martin,

I ran the same commands as you with the same results.  I can't comment 
on the maintenance of the program or the non-functioning -o flag, but I 
can say that the time signature problem is because "\time 3/4" is in a 
variable that wasn't included in the \score block.  If you either put 
\time 3/4 into the variable called "trackBchannelA" just before the 
notes begin, or add "\trackA" to the \score block right after where it 
currently says "\trackB", then the melody appears properly in 3/4. 
Apparently the midi2ly conversion does not recognize pickup notes either 
(not really surprising) so you also have to specify "\partial 4" (i.e. 
quarter-note pickup) before the first notes begin so that the downbeat 
is in the right place.  The barchecks are also misplaced by default so 
you get warnings about this when running the file:


trackBchannelA = \relative c {
\time 3/4
\partial 4  g''8. g16
  a4 g c |
  % 2
  b2 g8. g16 a4 |
  % 3
  g d' c2 |
  % 4

}


With a midi2ly conversion you can expect to have to do some manual 
corrections.  I remember trying midi2ly myself several months ago on 
some longer, polyphonic files, and they were such a disaster that it 
would be easier to start over and enter all of the notes from scratch. 
The musicXML2ly conversion works *much* better, with only minor cleanup 
necessary even for pretty complex files.

Cheers,

Jon

Martin Tarenskeen wrote:
> Hi Lilyponders,
>
> I'm new in this newsgroup, forgive me if my question had already been 
> discussed.
>
> I'm trying the midi2ly utility. I have attached (I hope this mailinglist 
> accepts attachments)
> 1. driekwart.mid - a few bars in 3/4 time (happy birthday,)
>
> I tried this:
> # midi2ly -o midi2ly-test.ly -d 16 driekwart.mid
>
> The result was a file named "driekwart-midi.ly" and not 
> "midi2ly-test.ly". The -o option is ignored. A bug, or am I doing 
> something wrong ?
>
> Another problem: If I do 
> # lilypond driekwart-midi.ly
> the resulting ps/pdf files show happy birthday in 4/4 time, but I do 
> see 3/4 time in driekwart-midi.ly. Again a bug, or newbie-ignorance ?
>
> Last question: driekwart-midi.ly shows \version "2.7.18" while I'm 
> testing lilypond 2.11.62. Has the program not been maintained/updated 
> for a long time ? Shouldn't someone do that, or is everyone focused on 
> musicxml2ly these days. I know: MIDI sucks when it comes to producing 
> sheet music. But that's no excuse for a malfunctioning midi2ly utility.
>
> The driekwart-midi.ly produced by midi2ly looks like this:
>
>
> % Lily was here -- automatically converted by /usr/bin/midi2ly from 
> driekwart.mid
> \version "2.7.18"
>
>
> trackAchannelA =  {
>   
>
>   \key c \major
>   
>   \tempo 4 = 120 
>   
>   \time 3/4 
>   
> }
>
> trackA = <<
>   \context Voice = channelA \trackAchannelA
>
>
> trackBchannelA = \relative c {
>   g'' a g c |
>   % 2
>   b2 g4 a |
>   % 3
>   g d' c2 |
>   % 4
>   
> }
>
> trackB = <<
>   \context Voice = channelA \trackBchannelA
>
>
> \score {
>   <<
>     \context Staff=trackB \trackB
>   >>
> }
>
>
>
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>
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--
Jonathan Kulp
http://www.jonathankulp.com