Ties between voices

[Andrew Bernard]

I know that we can't natively make ties between notes in different 
voices. I know that there was a Google Summer of Code task that could 
not be completed.

This is such a critical feature for keyboard music. When there are 
hundreds of such ties in major pieces, it is just too tedious to do all 
the workarounds with hidden notes and voices. I'm sorry to say that I 
have switched to Dorico because of this significant shortcoming, after 
having been a Lilypond user for a decade or more.

So, my question is this. Is the codebase just painted into a corner that 
can't be gotten out of in this area due to architectural design 
decisions? Are there any plans at all to develop this functionality in 
the forseeable future?

Andrew