Hi All Many thanks to the respondents of my original message, emailed 25 July 2025, where I outlined problems installing Lilypond on Mac Sequoia 15.5. Unfortunately, the current version given for Mac is not compatible with Mac. The Mac link given on the site instead takes you to a version of Lilypond where the executable files are configured for Windows. There is no app for Mac to install. Furthermore, the MacPorts package manager also does not seem to be functional for Sequoia.
I had a chat with an engineer from Apple Support (who is also familiar with Windows and Linux) for another reason; I asked them to look at this as well. Their subsequent recommendation was to contact the developers with screenshots of the error messages in terminal. I had Lilypond installed on an older Mac, but that is no longer functional either. Back to the drawing board. Regards Flora Henderson PhD (London)
