[R] Some Unicode symbols are missing

[Atte Tenkanen]

Hi,

I would like to draw some Unicode symbols like G- and f-clefs (used in 
music notation) in quartz-window. I succeed in producing sharp #,:

plot(0,0,xlim=c(0,2),ylim=c(0,2))
points(1,1, pch="\u266F",cex=2)

But for instance "b" (flat accidental) u266D and those clefs doesn't 
work. G-clef is said to be

UTF-8: F0 9D 84 9E
UTF-16: D834 DD1E
Code point: U+1D11E

I have loaded package extrafont and tried everything found in internet 
without success. Font issues stay mysterious to me ...

My system is OSX 10.12.6, R 3.3.3.

-- 
Atte Tenkanen