Right after I went to bed the other day, I received a message from my college sophomore "Can someone please loose the strings on the two instruments upstairs and the two electric guitars? they should just be loose enough to make a lower sound, not vibrate against the neck". I was more than happy to do it, even not realizing what I was asked to do. Thanks to modern technology, he was able to instruct me remotely.
I took this opportunity and did an inventory of his room and his musical instruments: one piano, one amplifier, two guitars, two electric guitars, one keyboard, one portable keyboard, one violin, one harmonica, one flute, and some I don't know their names. His room has been so clean and tidy, everything is in its proper place. He took his portable keyboard with him, hopefully, he can put it into good use, at least to distract him a bit.
The house is so quiet now. I miss the noise those thing make.