Originally Posted by Thomas W. Bethe
No we have not as the director does not want ANY microphones or mic stands between her and the choir.
What if they were placed at shoulder height, below line of sight? For a medium size choir I imagine this could be done invisibly with about 4 or 5 mics. Something small, like MKH8020 or Earthworks type mics, aimed directly upwards, would disappear among the choir.