Re: A bug in event-listener.ly

[James Lowe]

Fwding to bug list

On 17/12/15 13:39, Richard Shann wrote:
> While developing a Playback View in Denemo (music plays back while
> LilyPond-typeset SVG is animated, building on Mathieu Demange's work) I
> came across a bug in event-listener.ly:
>
> In this procedure
>
> #(define (format-tempo engraver event)
>     (print-line engraver
>                 "tempo"
>                 ; get length of quarter notes, in seconds
>                 (/ (ly:event-property event 'metronome-count)
>                     (format-moment (ly:duration-length (ly:event-property
>                                                         event
>                                                         'tempo-unit))))))
>
> The division should be a multiplication, otherwise \tempo Presto 4=480
> and \tempo Presto 2=240 result in different tempi being written out.
>
> Richard
>
>
>
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--
James

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