Yes! And your examples are on point, (mostly) deliberate on my part. The story is that I was a music student (piano) many many years ago (I guess I am a *young* composer only at heart 🙂 ), and part of the curriculum was a "elementary harmony" exam whose topics correspond, by and large, to CPP (four-part harmony, modulation, some chromatism). About a year ago, in lockdown and a little bored I brushed up on the harmony textbook and started reading it, doing exercises etc. I figured I could write the exercises on the computer, and then realized I could have fun arranging them for the orchestra, and expanding them a bit. Then it struck me that I could try to write my own thing, so I did. And I've been having fun, albeit at a slow pace, doing it since then.
It's interesting that you pick these examples, because that is (bars 3-4 and 62) an element that I tried to make somewhat "structural" in the piece. The Ab-A-Bb chromatic passage in bar 4 comes back in bar 20 accompanying the ending of what will become the main 4-note theme in the development; in bar 32 (descending) embellishing the bridge passage when given to the piano, esp in bar 43 in the second theme, further stressed by the fermata; in bar 62 as appoggiatura; and esp in bar 94 to culminate the development with the augmented 4-note theme in the high register of the bassoon leading to the V of Eb to conclude development.
Thank you for looking at the score so carefully! I also hope to have a recording of this at some point.