Re: ghostscript 9.56.1 in lilypond 2.23.14 no longer finds font Helvetica-Bold, but gs in 2.22.1 did

[Jeff Olson]

On 11/13/2022 1:24 PM, Jean Abou Samra wrote:
> [Self-promotion:] Have you tried to read this?
>
> https://scheme-tutorial.readthedocs.io
>
> (It originates in a presentation that some people found clear, which 
> is the reason why I wrote it down.)

Yes!  It is excellent and I highly recommend it.  Especially after you 
incorporated my 7/12/2022 off-list suggestions concerning named let and 
various presentation formatting issues (self-promotion 😉)!

I also recommend your 
https://extending-lilypond.readthedocs.io/en/latest/ and am reading 
Abelson and Sussman as recommended by Andrew 
(https://lists.gnu.org/archive/html/lilypond-user/2022-07/msg00388.html). 
All these help.

It seems my issues are not so much with Scheme as they are with the 
multi-pass, delayed-effect subtleties inherent in the complex issues 
lilypond addresses, which continue to surprise me when I try to  make a 
substitution function work.  But that's a whole 'nother thread.

Meanwhile I've got to get back to making an MWE to explore why 2.23.14 
(but not 2.22.1) is crashing with a segmentation fault when I put too 
many scores in a bookpart (clearly another thread).

Jeff