well john, you will discover very soon, that on the dg box you have five[i think] notes,in two different directions, so you can have a choice of phrasing. I recommend mallys book.You can also use decorations that use the same row, for example cutting a note[playing a grace note with button above or below or both.
both equals button abov, note. button below, note, going the same direction. this may be a bit advanced at the moment but hopefully may be useful later