\column {
\mrkp
\override #'(style . mensural) \mrkp
\override #'(flag-style . modern-straight-flag) \mrkp
\override #'(flag-style . old-straight-flag) \mrkp
\column {
\mrkp
\override #'(style . mensural) \mrkp
\override #'(flag-style . modern-straight-flag) \mrkp
\override #'(flag-style . old-straight-flag) \mrkp