Re: Bug - Lilypond hangs forever if too many prime tuplets are used

[Simon Albrecht]

Hello McLaren,

first: code formatting is important. On your own, you can do whatever 
you like, but as soon as you share code, please adhere to at least the 
following conventions:
– { } << >> _must_ be surrounded with spaces, even if they are not 
technically necessary.
– Use correct indentation (by 2 spaces) and line breaks to clarify 
nesting of braces of any kind.
– Don’t put too much code on one line. Often this means one bar per 
line, in this case there should definitely be only _one_ tuplet per 
line; groupings can be achieved by empty lines _where sensible_.

Also, your example has many superfluous {} and <<>>, and you should look 
that your e-mail client doesn’t mess up comments by inserting line 
breaks. When in doubt, give code as attachment – it’s safest. The 
following is basically the same code, but much better readable:

%%%%%%%%%%%%%%%%%%%
\version "2.19.49"
\new Staff \relative c'' {
  \clef "treble"

  \tuplet 53/37 r4
  \tuplet 37/29 c8
  \tuplet 3/2 d8
  \tuplet 5/3 e8

  \tuplet 11/9 b4.
  \tuplet 17/13 g8
  \tuplet 7/5 r4
  \tuplet 13/8 a8

  \tuplet 8/5 b8
  \tuplet 12/7 c4
  \tuplet 23/19 r8
  \tuplet 47/37 e8

  \tuplet 43/29 f4
  \tuplet 29/17 { d8[ e g] }
  \tuplet 53/47 c,4.

  \tuplet 61/37 r4
  \tuplet 17/14 e8
  \tuplet 23/18 f8
  \tuplet 17/19 d8
  % To get the bug, uncomment the next line. Lilypond gives no error 
message,
  % but hangs permanently with message "Interpreting music..."
  \tuplet 11/13 r8
}
%%%%%%%%%%%%%%%%%

Now, the only thing I changed was omitting the last tuplet, which is 
_not_ necessary to trigger the bug, at least not on my system. Which 
confirms my suspicion that you don’t seem to have been careful enough in 
providing a _minimal_ example. These are mandatory on the bug list, so 
please recheck if you can find _any_ kind of reduction. That example is 
way too verbose for my taste, try if you can reduce it e.g. using 
\repeat unfold.

Best regards,
Simon


On 13.11.2016 07:01, mclaren wrote:
> \version "2.19.49"
> <<
>
> \new Staff {
>      \clef "treble"
> \relative c''
> {
> \tuplet 53/37{r4}  \tuplet 37/29{c8} \tuplet 3/2{d8} \tuplet 5/3 {e8}
>
> \tuplet 11/9{b4.}  \tuplet 17/13{g8}  \tuplet 7/5{r4} \tuplet 13/8{a8}
>
> \tuplet 8/5{b8} \tuplet 12/7{c4}  \tuplet 23/19{r8} \tuplet 47/37{e8}
> \tuplet 43/29{f4} \tuplet 29/17{d8[ e g]} \tuplet 53/47{c,4.}
>
> \tuplet 61/37{r4} \tuplet 17/14 {e8} \tuplet 23/18{f8} \tuplet 17/19{d8}
>
> % To get the bug, uncomment the next line. Lilypond gives no error message,
> but hangs permanently with message "Interpreting music..."
> %\tuplet 11/13{r8} \tuplet 3/5{f8}
>
> }
>
> }
>     
>
>
>
>
>
> --
> View this message in context: 
> http://lilypond.1069038.n5.nabble.com/Bug-Lilypond-hangs-forever-if-too-many-prime-tuplets-are-used-tp196554.html
> Sent from the Bugs mailing list archive at Nabble.com.
>
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