Changing the positions of figured bass alterations

Accidentals and plus signs can appear before or after the numbers, depending on the figuredBassAlterationDirection and figuredBassPlusDirection properties.

If plus signs appear after the number, specially designed glyphs are provided for some figures.

\version "2.24"

#(set-global-staff-size 26)

\figures {
  <5\+> <5+ 4\+> <6 4- 2\+> r
  \set figuredBassAlterationDirection = #RIGHT
  <5\+> <5+ 4\+> <6 4- 2\+> r
  \set figuredBassPlusDirection = #RIGHT
  <5\+> <5+ 4\+> <6 4- 2\+> r
  \set figuredBassAlterationDirection = #LEFT
  <5\+> <5+ 4\+> <6 4- 2\+> r
}