(glyph-name-alist . ,standard-alteration-glyph-name-alist)
(alteration . ,accidental-interface::calc-alteration)
(stencil . ,ly:accidental-interface::print)
(glyph-name-alist . ,standard-alteration-glyph-name-alist)
(alteration . ,accidental-interface::calc-alteration)
(stencil . ,ly:accidental-interface::print)