Hi Karlin,
How about:
\version "2.19.48"
%%% Clef C Ladder Style defs:
myClefC = \markup\stencil
#(make-path-stencil
'(M 0.000 -1.500
L 0.000 -1.850
C 0.000 -1.890 0.032 -1.920 0.075 -1.920
C 0.122 -1.920 0.150 -1.890 0.150 -1.850
L 0.150 1.850
C 0.150 1.890 0.122 1.920 0.075 1.920
C 0.032 1.920 0.000 1.890 0.000 1.850
Z
M 0.350 -1.500
L 0.350 -1.850
C 0.350 -1.890 0.382 -1.920 0.425 -1.920
C 0.472 -1.920 0.500 -1.890 0.500 -1.850
L 0.500 1.850
C 0.500 1.890 0.472 1.920 0.425 1.920
C 0.382 1.920 0.350 1.890 0.350 1.850
Z
M 1.800 -1.500
L 1.800 -1.850
C 1.800 -1.890 1.832 -1.920 1.875 -1.920
C 1.922 -1.920 1.950 -1.890 1.950 -1.850
L 1.950 1.850
C 1.950 1.890 1.922 1.920 1.875 1.920
C 1.832 1.920 1.800 1.890 1.800 1.850
Z
M 2.150 -1.500
L 2.150 -1.850
C 2.150 -1.890 2.182 -1.920 2.225 -1.920
C 2.272 -1.920 2.300 -1.890 2.300 -1.850
L 2.300 1.850
C 2.300 1.890 2.272 1.920 2.225 1.920
C 2.182 1.920 2.150 1.890 2.150 1.850
Z
M 0.500 -1.100
C 0.500 -1.030 0.520 -0.970 0.620 -0.950
L 1.600 -0.670
C 1.690 -0.650 1.800 -0.620 1.800 -0.700
L 1.800 0.070
C 1.800 -0.020 1.700 -0.020 1.630 -0.050
L 0.750 -0.300
C 0.550 -0.370 0.500 -0.330 0.500 -0.200
Z
M 0.500 -0.100
C 0.500 -0.030 0.520 0.030 0.620 0.050
L 1.600 0.330
C 1.690 0.350 1.800 0.380 1.800 0.300
L 1.800 1.170
C 1.800 0.980 1.700 0.980 1.630 0.950
L 0.750 0.700
C 0.550 0.630 0.500 0.670 0.500 0.800
Z)
0 1 1 #t)
\new Staff \with {
\override Clef.stencil = #(lambda (grob) (grob-interpret-markup grob myClefC))
clefPosition = #1
middleCPosition = #1
middleCClefPosition = #1
}
{
\key aes \major
\time 3/4
c'2.
}