I just had a thought that if I really wanted to could I buy a nursery edible cherry tree and cut the top off and graft a different variety off edible cherry on to it? Also would this work or not?
Grafting is normal for cherry trees, as it is for just about all temperate fruit trees. The only problem with using a tree from a nursery, aside from the waste of an already grafted top, is that grafting is easier and more likely to work if the stock is already well-rooted and growing vigorously. If you are going to buy the tree from a nursery, why not buy one with the desired variety already grafted on, or make a multi-variety tree by grafting a new variety or varieties on to some of the branches?
No I wasn't going to cut the whole tree just the top branches. But I like your idea of a multi variety tree better. :) thank you