In this video I explain the use of Melodic and Neapolitan Major over a chord progression from the Major scale, in this case Dorian.
The scale choices are to be found in section I of M3 book and give the root notes of the scales to be used.
This is a video to accompany my original post at my facebook group: https://www.facebook.com/photo/?fbid=345219285241847&set=g.215857764565028