These are extremely clever (and nearly identical) solutions — thanks!Welcome.
Just so you can see the fruits of your labour(s), here’s the top of the first page of the piano/conductor score of “Fairy Tale Ending” (one of my stage musicals):
I’m still tweaking various format things… but to my eye that titling block is a home run.
Thanks again,
Kieren.
p.s. There are four musicals I need to engrave over the next six months or so. Once I have all the relevant stylesheets (e.g., musical_pianoconductor.ly, musical_vocalbook.ly, musical_score.ly) ready for public consumption, I’ll be sure to post them somewhere like openlilylib for comments and improvements.