Musescore with NVDA

Hi,
I applaud the efforts of the developers for making the effort to make MuseScore accessible to blind musicians, and am currently downloading nightly builds with the aim of helping where I can. I hope that my observations won't be seen as negative, as my aim is to help progress, and to give the developers an idea of how we "see" things. The following observations may be of use:
When generating a new score, adding title, subtitle, composer, and copyright all works fine. The problems start in the Template Selection. Things become a bit vague, and sometimes theselected item loses focus, and I'm tabbing around in no man's land. I do however succeed in selecting my template of choice, and move on to entering key and time signatures.
Time signature is fine, and is expressed exactly as I'd expect. The time signature however is a problem, but maybe there's a way to do that once you've entered the number of initial bars, and actually started writing the score. On the other side:
The braille display I'm using focusses on the note you've just entered, which I personally find extremely useful. I'd like to find a way to either display or hear vertically alligned notes.
This has been a long post, and many thanks to those who have read it through it. Please let me know of any future changes which may solve these problems, and I'll be happy to test them out on the relevant nightly build.
David.