Wow! It seems like this melody can be played offline on a 15 note paper strip music box!
All you need to do is:
Ok so basically I tried composing a melody myself but it was hard and my brain eventually stopped working ( I am better at musical arrangements). So anyway, I worked on the creepy lullaby and realised that by keeping the melody and adding that same melody flipped upside down for the "bassline", you can get a spooky distorting effect. More methods to come. There are a lot of ways to make orchestrated music creepy, but doing so in music boxes is much more limited, but I'll try to find a way to simulate those effects on this sequencer.