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.
Well I dunno I just tried adding the inverted melody to the original melody and it gave that result so yeah I'll try other things, but like I said it will be difficult on this music box sequencer.