I sometimes play the accompanment for a singer friend in her thirties with a great voice but she is relatively weak in the theory side. a particular problem is how to pitch intervals when sightreading. for example, if the melody goes from a G to a D#, she may not hit the right note!! I myself had music training from the age of 5, so this sort of thing is second nature, but what techniques are there to teach this? any advice or experience would be welcome.thanks