https://www.linusakesson.net/music/vivaldi-summer-presto/ind... https://www.linusakesson.net/music/withering-bytes/index.php
I always recommend watching his old Chipophone video (homemade 8-bit synthesizer from a repurposed old electronic organ). He has made many cool instruments since. Some of which maybe more tehcnically impressive, I can't tell. But this one is probably still on my all time top 10 "most enjoyment from watching a Youtube video" https://www.youtube.com/watch?v=m1pchpDD5EU
Such cool sounds and he plays it well!
And Famistudio is an excellent alternative if you prefer composing on a piano roll: https://famistudio.org
https://www.youtube.com/watch?v=bM3bYVt-c1k
Original song:
It'll give you a good idea for what he's making. (The music video is also really cool.)