The questions devoted to identifying the set works are very easy. It’s quite good that different instruments are used.
In terms of the actual works set for study, I find the ‘Pange Lingua’ an unbelievably obscure choice for demonstrating the Phrygian mode. It would have been much better to use the little Burgmuller study ‘Progress’, which contains the Phrygian mode in the right hand of the first bar and the left hand of the second bar, played in scale form and much more easily recognisable.
I also feel sorry for poor old Christian Pezold, who has suddenly been attributed with the famous Minuet and has missed out on approximately 350 years of royalties.