I hate to say it but my only programming experience was with my basic cartiridge on my Atari 800.
I programmed a full fledged text game in the spirt of the "chose your own adventure novel" kind of thing.
I even did a full graphic intro screen if I remember correctly?
Saved to cassette tape so I'm sure its lost forever....
I wouldn't be too negative, my CPC tapes still work fine and I've many tapes which have outlived some CD's of mine.