Welcome to the lone rabbit hole! I am guessing the abrupt stops might be hinting at the track being supposed to loop at that point? I think a fade out would help with getting that across.
Really nice piano tunes, you got quite the serene atmosphere going. Using these kind of beats in your setting is interesting, I think it could work. :) Really like the third track, what a vibe! Like with Kingdom Hearts, I could just chill out in the lobby for a while listening to this, before jumping into the action. Alas, there's no mention of the theme here. While a lost world could be related, as in time has passed, and you're going back in a sense, it's still a bit difficult to find the relation to the theme.
Nice job, hope to see you in future jams!