If the Fingering grob has an explicit direction set, it is NOT possible to
override it with an explicit direction in the input:
\override Fingering #'direction = #DOWN
c'4-3 c'4^3 c'4_3 c'4-3 |
In this example, all fingerings will be below the staff, but the second
one
should still be above, since ^ is explicitly given. Full example is
attached.
The only way to override is with an explicit
\once\override Fingering #'direction = #UP
Cheers,
Reinhold
PS: For other grobs, like DynamicText or DynamicLineSpanner an explicit
direction (^ or _) overrides the Grob's direction.