(cross-staff . ,script-or-side-position-cross-staff)
(font-encoding . fetaText)
(font-size . -5) ; don't overlap when next to heads.
+ (number-type . arabic)
(padding . 0.5)
(parent-alignment-X . ,CENTER)
(script-priority . 100)
self-alignment-interface
outside-staff-interface
side-position-interface
+ number-interface
string-number-interface
text-interface
text-script-interface))))))