I'll update LilyPond via MacPorts and see what I find. Also, I acknowledge that I need to get better about quoting previous emails. It's been a long long time since I was an active participant in a mailing list.
> On 9 Feb 2022, at 21:28, Jean Abou Samra <jean@abou-samra.fr> wrote:
>
> Le 09/02/2022 à 21:23, Hans Åberg a écrit :
>> I get the warning below repeated a number of times; It would be good if somebody could explain.
>> % lilypond test-e53smufl.ly
>> GNU LilyPond 2.23.6 (running Guile 1.8)
>> Processing `test-e53smufl.ly'
>> Parsing...
>> Interpreting music...
>> warning: cannot find property type-check for `glyph-name-alist' (backend-type?). perhaps a typing error?
>> warning: skipping assignment
>> …
>
> You need to run convert-ly on the file that is using
> the glyph-name-alist property.
Thanks, it helped. The nee name is alteration-glyph-name-alist.
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