The formula this week follows the same formula as last week, though this week it’s on the Major and Minor 3rds and 6ths.
These four intervals fill the gap between last weeks very consonant intervals and the intervals to be discussed. They are able to cause just enough tension without sacrificing their consonance. The exercise is also the same formula as last weeks. It’s not important that you play this particular exercise every day for the rest of your life. Just pay attention to where these intervals are from the root notes and you’ll be fine.