Re: Midi block gives errors with bar number checks

[Peter Toye]

Carl,

I've just found the MIDI "beat clock" - 24 per crotchet. Still no bar numbers 
though!

Best regards,

Peter
mailto:address@hidden
www.ptoye.com

-------------------------
Tuesday, November 26, 2019, 5:21:07 PM, Carl Sorensen wrote:



> On 11/26/19, 9:24 AM, "Peter Toye"
> <address@hidden> wrote:

>     The following MWE gives bar number check
> errors. If you comment out the midi block they
> go away. Bizarre, but a definite bug IMHO.

> I don't think it's a bug at all.  Midi files
> require ascending bar numbers, IIUC.  You can't
> have two measure #2 in a midi file.

> So you can label the bar with whatever bar
> number you want.  But when you run the midi,
> you'll just get incremented bar numbers.

> Hence, the midi sees the fourth bar as bar 4,
> regardless of whether it is in an alternative or not.

> If you put \barNumberCheck on your bars 1 and 2
> and then unfold the repeats in your midi, you'll
> see errors on each bar number check.

> \version "2.19.52"

> \language "english"

> music = {
>     \new Staff {
>     \repeat volta 2 {
>       \barNumberCheck 1 c''1 \barNumberCheck 2 1
>     }
>     \alternative {
>       { \barNumberCheck #3 d''1  }
>       { \barNumberCheck #3 e''1 }

>     }
>     { \barNumberCheck #4 f''1 | }
> }

> }

> \score {
>   \music
>   \layout {
>     \set Score.alternativeNumberingStyle = #'numbers
>     \override Score.BarNumber.break-visibility = ##(#t #t #t)
>   }
> }

> %%%%%%%%%
> % comment out the midi block to remove errors
> \score {
>   \unfoldRepeats
>   \music
>   \midi { }

> }
>