Here are my submissions for lesson 4.
Jean-François DELCAMP (1956) NOVELETTE n°3 à Alexandra
Niccolò PAGANINI (1782-1840) GHIRIBIZZO 24
Jean-François DELCAMP (1956) SCALES n. 14 LA mineur
ANONYME (1500) SCARBOROUGH FAIR
Addendum: I do realize that my tempo and dynamics aren't up to par. I have found that the recommended practice time - which I'm already exceeding by about 50% - is just enough for me to memorize the notes (well, almost - Paganini still required some looking in the first few lines) and to start to get some sense of the rhythm of the piece. Significantly more time would be needed to really master them.
There's also the matter of choosing the right tool for the job. I have been playing my Cordoba C1 3/4 (48mm nut / 615 scale), which really helps my inflexible fingers make some of the reaches I encounter from time to time, such as in Novelette (the reaches from the first fret to the fourth in a few places) and with the Paganini piece (that 2 fret reach from 5th string B - B2 - with the LH finger 2 to the 3rd string B - B3- with finger 4 - very difficult for me even on the 615 mm scale). Sometimes there's a vertical reach that the string spacing from the 48mm nut helps with. But most of the time I kind of wish I had the string spacing of the 52/650 guitar. Both LH and RH feel like they're much more able to avoid hitting an adjacent string. I could just use that 52/650 and put a capo at the first fret (which turns it into a 52/613.5), but that obviously has a couple downsides - the need to change fret markers (I do rely on them, unabashedly), and the annoyance of having the "effective" 12th fret past the point where the neck joins the body. As if the scale here wasn't tough enough!
Briefly I owned a 50/630 guitar, the Cordoba Dolce. Beautiful guitar, sounded nice, but it came with a bit of fret sprout (likely to worsen over time at my house), and my fingers didn't adapt to the scale that well. It was strange. I could more easily go from my 52/650 standard full size guitar to my 48/603 Rover travel guitar, than I could to this 50/630 one. It was a "tweener" in that sense. And the 630 scale didn't really help me enough in terms of reaches for it to be worth my while "giving up" a bit of string spacing.
I have read Alicia Penk-Kopstein's The Healthy Guitar and from her recommended measures, it does appear I should be in the shorter scale range. But I guess I do wonder whether I should reconsider the capo 1 idea, despite its difficulties. I forget how much she addressed string spacing. I'll have to re-read it - perhaps I should periodically do that anyway as my hands change with age.