% the RehearsalMark will be aligned with the right edge of the KeySignature
\once \override Score.KeySignature #'break-align-anchor-alignment = #RIGHT
\key a \major
\mark \markup { \char ##x2193 }
e1
% the RehearsalMark will be aligned with the right edge of the KeySignature
\once \override Score.KeySignature #'break-align-anchor-alignment = #RIGHT
\key a \major
\mark \markup { \char ##x2193 }
e1