To add custom instruments, you need to modify some XML files under /Applications/Dorico 2.app/Contents/Resources. Only do this if you're comfortable doing something like that!
For instruments.xml
and instrumentnames_en.xml
, you will add new entries. I placed them after the Pianoforte entry.
If your computer isn't set to English, choose the correct localization file for your system.
For instrumentFamiliesDefinitions.xml
you will replace the existing keyboards entry (essentially you add instrument.keyboard.piano.alias.part
to the `` element for Keyboards.