yes, he is working with evan king, a long time colabarator that makes the actual good music in his games, in this karlson demo thing dani made his own music loop (thats why it bad)
Viewing post in Will the full game have an actual OST of some sort?
he made this version for a youtube video and realeased it and now is making a actual game that is not done yet, this karlson and the karlson that he is making ion his videos is a diffrent thing when he reased this he didnt know that he will make a actual karlson game so thats why this game is barely a demo, when he is done with the actual karlson it will go up on steam and this itch.io game will be gone