Holy moly, this is hands down an underrated entry and easily one of the best ones in the competition! Everything about it is near perfection!! The theme is incorporated amazingly well, and the unique concept and mechanics are both intriguing and captivating. I absolutely love how the music gradually fades after each bounce, creating an immersive atmosphere. ^^
The art style is really nice too, although I did notice that some assets clash a bit due to the lack of defined outlines. However, that's more of a nitpick and doesn't significantly affect the overall experience.
If I were to be picky, I would mention that controlling the note could be a bit challenging at times, especially when trying to hit the old grandpa or the better cafe people due to the limited space of the hole. I would recommend either slightly increasing the size of the hole to strike a balance between challenge and frustration or adjusting the movement of the note to make it slightly easier to control. That being said, considering this is your first game, it's still amazing! I see immense potential in your work.
Please consider expanding this into a bigger project! I would wholeheartedly pay for a full version with a story and everything because this game is a splendid and wholesome experience. Amazing work! :D