For a single note, how can I increase my dynamic/velocity from piano to forte/soft to loud within the same note?
Play it stronger?
Very unspecific question.
Either see if the instrument responds to expression or fade out with controller 7 which is volume.
What is this? Or, a better way to ask this is, how can I find it?
How do I crescendo in Cubase Elements 11.
Controller 7 is volume. Look at the bottom of grid editor where there is a drop down where you can choose your controller and draw in a curve. You can even use automation on the slider in the mixer
How do you crescendo this on a piano? Or a guitar? …compared to a trumpet or a violin.
It depends on the (VST) instrument how exactly you can make a held note gradually louder.