Does not feel like it is a tetris game to be honest. This feels more like a Puzzle League / Panel de Pon type of game from what I was playing.
The gameplay is simple but also harsh in that if you ignore a part of the grid, it can be at the top before you even realize it.
The music seems mostly fitting and does not give a harsh "speed it up" type of feeling but gives more of a "take your time" vibe to it.
Overall, not a bad game, kind of fun.