I heard a song the other day in a card shop. All the music was a selection of mainstream big band. I asked the lady behind the counter what it was, and she didn't know, it was a CD the proprieter had put in the system. Now, I will try to explain it. The singer sounded like a trained soprano, but she was totally on the ball as far as singing jazz is concerned. This was obviously contemporary. The bit that stood out to me was when she was doing arpeggio work with the band. I know that there are some very knowledgable jazz musicians here, any idea who this is?