Have you pointed Frescobaldi to Lilypond so that it can find it? This would be automatic, I think, if you use Frescobaldi to install Lilypond (I’ve never done that). Otherwise in Frescobaldi > Settings > Lilypond there is a place to tell it where the Lilypond executable can be found.
> On Jan 29, 2026, at 3:07 PM, Francesco Intrieri > <[email protected]> wrote: > > Dear Yoshiaki, > > Thanks for your advice. I tried it, but unfortunately without any luck. > > If anyone has another clue, I’ll take it. > > Best, > > Francesco > >> Le 29 janv. 2026 à 19:30, Yoshiaki Onishi <[email protected]> a écrit : >> >> Dear Francesco: >> >>> Any clues on what I should do to make Frescobaldi/LilyPond work ? >> >> >> I have been using Sonoma on M2 (and I will *not* upgrade my OS…), but if >> Tahoe 26.2 is anything like recent MacOS on Apple Silicon, I might venture >> to guess that it has something to do with file permissions and, especially >> if you manually installed the LilyPond yourself, you might need to actually >> manually tell MacOS that LilyPond is a legitimate thing and they should >> recognize in your system. You might try the following: >> >> >> 1. start up a Terminal application (/Applications/Utilities/Terminal.app) >> >> 2. type in: >> >> "sudo xattr -rd com.apple.quarantine " >> >> NB: without the quotation marks at the beginning and the end (and note the >> space at the end; that space must be there) >> >> 3. Drag/Drop the LilyPond folder you placed from the Finder into >> the Terminal window with the "sudo ..." command typed in. The result >> should be a line in the Terminal window that looks something like this >> ( >> >> sudo xattr -rd com.apple.quarantine /Users/francescointrieri/(etc. etc. etc…) >> >> 4. Hit <return>, enter your password, hit <return> again. >> >> I hope that works for you! >> >> Best wishes, >> Yoshi >> >> >> -- -- -- >> Yoshiaki Onishi >> https://github.com/yoshiakionishi/lilypond-snippets
