I'm looking for a way to create a note of indetermined length. It should
look like a Breve. But at one line it may be 50*4 long. Then the line
breaks and it might be 111*8 long (etc). But still looking the same. The
note needs in all other ways to behave like a normal note. A real life
example is to be found in the Nocturne from Serenade Opus 31 by Benjamin
Britten.
