Markup on both clef and key signature

[Hans Aberg]

How are markups on both clef and key signature done?

The code [1] produces a warning: "Two simultaneous mark events, junking this 
one”, omitting the key signature markup.


---- 1 ----

\version "2.17.29"

\language "english"

music = \new Staff
{
  \override Score.RehearsalMark.break-align-symbols = #'(clef)
  \clef treble
  \mark \markup { \italic E53 }

  \numericTimeSignature
  \time 4/4
  \tempo 4 = 60

  \override Score.RehearsalMark.break-align-symbols = #'(key-signature)
  \key d \phrygian
  \mark \markup { \tiny \italic "D phrygian" }

  \relative c' {
     d4 ef f g | a bf c d | ef r2. |
  }
}

\score {
  \music
}

---------