do you remember the thrill of the first time you heard/noticed a specific interval in a song? (like for instance i remember when i was little and first noticed that 7th and 9th in a final chord of a blues song)
i remember at a young age figuring out if youre in the key of C and youre about go to F, sneak a Bb note into the mix (in other words play C7) right before you go. it will get everyone in the room ready and eager for the trip