Ah! Thank you very much for bringing the music situation to my attention! They have been replaced in the new hotfix version v.0.1.1 . If these new songs are also an issue with YT copyright, I don't mind changing them again.
Also, thank you so incredibly much for making a video on this game! I'll be sure to check it out as soon as I can! You're an absolute legend and I thank you wholeheartedly for taking your time to make a whole video on my silly little game!