How can I add a 3rd staff to the piano notation?
Pieces like “To the spring” by Edvard Grieg use this notation.
You can’t currently create a 3-staff piano, but you can use this attachment as a template.
3-staff-piano.dorico.zip (200 KB)
Thank you LeifG, how did you do this?
You can do it either by importing a MusicXML file that contains a piano with three staves, but there’s no way to do it directly within Dorico at the moment.
Ok, thank you!
When I imported an orchestral piece with divisi strings (Product A MusicXML), to my astonishment I got multi-staff string parts in Dorico. They came in handy, but I didn’t understand why I couldn’t recreate them. Apparently, Dorico can handle multiple staves, but there is just no means to create them yet.
Interestingly, I have a pdf containing the almost unplayable Opus Clavicembalisticum for piano solo by Kaikhosru Sorabji. The number of staves varies from 1 to 5, sometimes beginning or ending in the middle of the page. It’s extremely complicated music, but I think Dorico would be able to handle much of it already: open measures, weird nested tuplets, multi-voice, per-note accidentals, cross-staff chords, etc.
Forum competition: first one to engrave all four hours of the Sorabji wins! 
But the original Curwen edition is so beautifully engraved that it would almost be an insult to the plate engravers in Vienna if we were to redo it digitally … 
The original may be beautifully engraved, but it’s full of typos. Even the very first bar has half the notes, and a performance direction, missing, and there’s another misprint in bar 2!
It’s hardly “unplayable” - Jonathan Powell is part way through six scheduled complete performances during this year alone.
It’s already in the process of being redone digitally - though that work started before Dorico was more than a gleam in Daniel’s eye.
Just as an almost off-topic addition to the thread, it is interesting to note that fellow “Dorico-Forumite” Marc-André Roberge is the creator and manager of the “Sorabji Resource Site” at Sorabji Resource Site
Does Dorico 4 allow for 3 staff piano layouts? I have a piece I wrote using this and just doing it on 2 staffs looks cluttered, even with changing the size of the upper voice.
Just discovered it.
Thank you for your reply.