The art of the game is quite adorable and cute, visually pleasing along with the calming sounds of the waves in the background. The main difficulty is being able to isolate the sounds in the mind to try to replicate them and at least with a not very trained ear it is not so easy, even though it was a fun puzzle.
What was it that produced the sound beyond the sea? We don't know but I want to think that it was someone who expected the owner of the small house to respond, a sample of life to calm the heart in times of uncertainty. I don't know if by playing the whole song he understood that we were not the owner of the house or maybe he was convinced that it was okay, but I imagine that once he had an answer, his heart calmed down and therefore it was no longer necessary to keep trying to do Contact.
It's funny how the game is about replicating something and one theme that it seems to handle in the end is memory, there are experiences that once in a lifetime enjoyed in childhood and one tries to return to them, sometimes the memories are blurry and one doesn't know what he is looking for but he knows he has not seen or heard it again, I can only think that once that infant grows up, he will probably try to replicate the song in the old tower.