Thank you for your kind words I am really happy that you enjoy my game. It means a lot to me.
I am a bit surprised that the games volume is low on your device. The master volume is most likely still on the default 100%. So I dont't know what is going wrong. When I mixed the games Sounds and Music I did it by comparing it to other games and albums. When I play my game with Headphones I turn my PCs loudness to 16% .
I am very sorry but as long as others don't have the same problem I don't know how to solve this.
If someone else reads this, do you have the same issue?