Re: markup height measured from staff?

[Kieren MacMillan]

Hello!

> I would like to create a custom \markup command that puts a letter  
> at a specified distance from the staff rather than from a note.

What about putting an invisible note in a separate voice, at a known  
position (e.g., top line of the staff), and attaching the \markup to  
that?

Best,
Kieren.