Hello Kim,
welcome to LilyPond. > I’m not sure of the current way to suggest a change to lilypond source > but I just have a simple, 1-line change to propose. Thanks, but it's more than that, because... > It would be useful to have a mensural F clef that is on staff line 3 > for a baritone clef. ...you would have to update the documentation (file `Documentation/en/notation/ancient.itely`) and add an short entry to file `Documentation/en/notation/changes.tely`. It would be great if you could work on that! You can either send a patch again, or you could try to submit a Merge Request, following the documentation our Contributror's Guide, see https://lilypond.org/development.html Werner
