I finally got it working! For future reference, the problem was that I could not make ghostscript use the exported font files from lilypond. I got it working by symlinking from one of the hardcoded font search paths (/usr/local/share/ghostscript) into the font export directory.
Also I use pdfcrop in my chain and for the files produced with --pspdfopt=TeX-GS, pdfcrop doesn’t work correctly. pdfcrop uses gs with -sDEVICE=bbox to get the bounding box of the pdf but it runs gs with -dSAFER which prevents gs from loading the exported font files. I suspect it is because they are not the actual font files but only wrappers linking to the real font files. The only way I could resolve that was to either patch pdfcrop to remove -dSAFER or to ”manually” point gs to the actual font files by placing their path in the environment before calling pdfcrop: GS_FONTPATH=/Library/Fonts/:/Applications/LilyPond.app/Contents/Resources/share/lilypond/current/fonts/otf/ pdfcrop myscore.pdf If anyone has a cleaner solution I would be glad to hear about it! Erik > 27 sep. 2021 kl. 20:47 skrev Erik Ronström <e...@ompom.se>: > >> That option was removed again, but as far as I understand [1] you can >> get similar tunings with "--pspdfopt=".