This is a rabbit hole - enter at your own perils. There are two cases where the kinesthetic approach I have shown you for guide tones 3 & 7 will need to be slightly modified. This is the first of the two, and the other will follow in the next video. This video can be skipped altogether because very few people will notice the discrepancy (we tend to compensate naturally). For those who did notice and want to understand, however, here is the explanation - which will also help you memorize and remember the two exception cases within this first figure.