For writing of musical parts of your track in the program Orion 8.5, you need to know, and skillfully use different kinds of manipulations over the musical notes (midi - events), as well as way to edit these musical notes.
Let's look at them.
When playing video clips, do not forget about such options as:
full screen view (small square in the lower right corner of the player);
playback quality video (all videos 1080 HD): (in the settings - a symbol of the gear - you can vary).
How to write notes in the Orion program | How to work with the notes in the piano roll to create music