Re: Cryptic error message with tabs

[Graham Percival]

I'm having trouble compiling your example.  Could you please create a 
minimal example?  See
http://lilypond.org/web/devel/participating/bugs

for some tips.

Cheers,
- Graham

hernan gonzalez wrote:
> Perhaps not really a bug, but an inconvenience anyway:
>
> When the TabStaff finds a note that is out of the range of the
> instrument, it dies with an ugly and cryptic "low level" error
> message, with no indication about the measure or line where the error
> is found (or even what the problem is about).
>
> ----------------------------------------------------------------------
> \lilypond.exe"  testcase3.ly
> GNU LilyPond 2.10.19
> Processing `testcase3.ly'
> Analizando...
> Interpreting music... ERROR: In procedure list-ref:
> ERROR: Argument 2 out of range: 6
> ----------------------------------------------------------------------
>
> This can make fairly difficult for the user to find out what is
> happening and where.
>
> I attach a simple testcase below.
> Cheers
>
> Hernán J. González
> http://hjg.com.ar/ghibli/musica/
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> \version "2.8.0"
> \include "english.ly"
> %
> % This test case shows the confusing message that appears when an 
> invalid note
> % is found by the TabStaff engraver.
> %  Tested with lilypond-2.10.19 in WinXP
> %
> % Hernán González address@hidden
> %
>
> \header {  title = "test case - invalid note in tab" }
>
> top =   {
>      e4 c4 e,2  | % ok
>      e4 c,4 e,2 | % bad: this c note, is out of the range of the guitar
>      e4 c4 e,2 | % ok
> }
>
> thescore =  \score {    <<
>              \context StaffGroup <<
>              \context Staff <<
>                      \time 4/4
>                      \key g \major
>                      \set Staff.midiInstrument = "acoustic guitar (nylon)"
>                      \clef "G_8"
>                      \context Voice { \top }
>              >>
>              \context TabStaff <<
>                      \context TabVoice {     \top }
>              >>      >>      >>
>      \layout {}
> }
>
> \book {  \paper  {} \score  {  \thescore } }
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
>
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