I should clarify what I meant. By “out of tune” I mean that it sounds like the synth is playing over/on top of the rest of the track instead as part of it, making it seem like 2 different songs are playing at once.
At the end of the track, I guess this can be visualized using soundcloud’s player. The right-most side of the bright orange part (0:08) is where the synth sound seems like it’s ending (or losing momentum), and then in the darker orange part (and gray), it “comes back in” for 4 additional notes that don’t seem to add anything to the song.
Can you upload a variation without it to so we can compare?