Re: unattached SlurEvent

[Jean Abou Samra]

Le 22/03/2022 à 00:28, Mark Stephen Mrotek a écrit :
> Jean,
>
> Thank you for your reply.
> Here are three measures containing the command.
>
> \version "2.22.1"
> \relative c {
>    \key d \major
>    \time 3/4
>    \clef bass
>    
>    \repeat volta 2 {
>    e2 <e, e'>4 |
>    <a, a'> r }
>    \once
>    \override Score.BreakAlignment.break-align-orders =
>    #(make-vector 3 '(staff-bar clef))
>    \clef treble cis''8 a |
> }
>
> Thank you for your kind attention.
>
> Mark


For me, with the same version, this compiles fine without
a warning. A MWE is a minimal *working* example ;-)
See also http://lilypond.org/tiny-examples.html

One thought: could it be that you have an extra closing parenthesis
in your Scheme code? If you do

\version "2.22.1"
\relative c {
  \key d \major
  \time 3/4
  \clef bass
  
  \repeat volta 2 {
  e2 <e, e'>4 |
  <a, a'> r }
  \once
  \override Score.BreakAlignment.break-align-orders =
  #(make-vector 3 '(staff-bar clef)))
  \clef treble cis''8 a |
}

the last ) in the line containing the Scheme fragment
comes after the Scheme expression. Consequently, it is
parsed in LilyPond syntax. A ) is a slur, hence the message.
That's just guessing though.

Best,
Jean