Re: time signature 4 / \breve ?

[Graham King]

\version "2.19.82"

tsMarkup = \markup {
  \override #'(baseline-skip . 0.5)
  \column { \number 4 \note #"breve" #0 }
}

{
  \override Staff.TimeSignature.style = #'default
  \override Staff.TimeSignature.stencil = #(lambda (grob)
                    (grob-interpret-markup grob tsMarkup))

  \time 8/1
  c'\breve c' c' c'
}

HTH
-- Graham