OK PC you did Ask And I hope I get this right, as I understand High key is when the entire shot is bright and with very little shadow detail I think I have some prints somewhere I will look them out for you. Burning in is a darkroom term and it means to give the print in certain areas more light so to bring out more detail from the neg. Now if you where printing you berries shot you would have to hold back the light from the print to stop it being bright. Bloody hell man this is far too much detail but hope it helps. I have a great little darkroom book, when I get home I will look it out for you it gives you all this sort of stuff. :o)

Those who do not want to imitate anything, produce nothing. Salvador Dali