+whiteTriangleMarkup = \markup {
+ %% 394 capital delta
+ #(ly:export (ly:wide-char->utf-8 #x0394))
+
+ %% 2206 : delta from the symbol font.
+ % #(ly:export (ly:wide-char->utf-8 #x2206))
+
+ %% up pointing triangle
+ % #(ly:export (ly:wide-char->utf-8 #x25B3))
+
+ %% \override #'(font-encoding . TeX-math) \char #77
+}
+
+blackTriangleMarkup = \markup {
+
+ %% black up pointing triangle
+ #(ly:export (ly:wide-char->utf-8 #x25B2))
+}