FWIW, SMuFL defines these code points and you can see the style in the
Bravura font. There is a sharp with the number 5, too.
The attachment shows, that they define a fixed glyph combination.
The code in bravura-smufl.ly uses the openlilylib/snippets¹ and it
requires the Bravura font to be installed. In the definitions.ily file,
you can also see how to use the font to print grobs (here the
Accidentals, line 372).
A combination of makam.ly and this definitions.ily should be easy to do.
But as Werner said, having them in the Emmentaler font (one way or the
other) would be better.
Cheers,
Joram
¹:
https://github.com/openlilylib/snippets/blob/master/custom-music-fonts/smufl/definitions.ily
\version "2.20.0"
\markup \fontsize #16 \override #'(font-name . "Bravura") \line {
\char ##xE450
\char ##xE451
\char ##xE452
\char ##xE453
\char ##xE454
\char ##xE455
\char ##xE456
\char ##xE457
}
\include "custom-music-fonts/smufl/definitions.ily"
\markup \fontsize #14 \line {
\smuflglyph "accidental1CommaSharp"
\smuflglyph "accidental2CommaSharp"
\smuflglyph "accidental3CommaSharp"
\smuflglyph "accidental5CommaSharp"
\smuflglyph "accidental1CommaFlat"
\smuflglyph "accidental2CommaFlat"
\smuflglyph "accidental3CommaFlat"
\smuflglyph "accidental4CommaFlat"
}