Re: Cleanup beam scoring code. (issue4001046)

[Werner LEMBERG]

> There is one diff remaining: see the attached file.  I introduced
> some streamlining of an inner loop, which affects the way we handle
> beams that start/end with invisible stems.
> 
> The compare image is the new one.  I have no examples of tremolo beams
> handy, but the new layout actually looks better to me.

For me, it doesn't.  While the old behaviour is not optimal, the new
one looks really worse to me, especially in bar 3 (which is admittedly
a quite artificial example).  The most important issue for me: Why is
there no slant of the beams?  I currently have not enough time to
closely follow the new code, but I suggest that `stemless tremolos'
are handled similar to the tremolos within the 1/4 bars, but with
shorter stems (this means that for computing the positions, the
routine should pretend that there *are* stems).

IMHO, the ideal vertical position is somewhere in the middle between
the two images, *with* slant.


    Werner