I am going to take a peek and see if I can find it hahahah.
I get you with the carpet situation which is like the max sound absorber. it does make a big difference. So much to think about still to actually get the sound perfect.
For me that phase is still far away and it is more on getting the keys right and actually playing the song right, versus exactly how the sound is. That is for later heheh
Oh, believe me, I'm still trying to hit the right keys too! lol