Cadential Progression: A cadential progression is a specific type of harmonic progression that leads to a final cadence or resolution. It's like reaching the last step before completing your Lego house.
Circle of Fifths: The circle of fifths is a visual representation of the relationship between different keys. It helps musicians understand how chords can naturally progress from one key to another, creating smooth transitions.
Root Movement: Root movement refers to how the root notes (the lowest notes) move between chords in a harmonic progression. Understanding root movement helps musicians analyze and predict chord changes in music.