Gravitation is not mine.
Noise
Suguru likes noise.
No, that's not exactly true. He likes pleasant noise- like music, or Tohma's voice. He is especially fond of his keyboard. Or, best of all, a piano- a proper one, not electric. Electric ones are never as good, or as real as a proper piano.
In short, Suguru likes music.
Music is a balm to him: he can feel the notes pulsing through his veins, heart pounding in time with the heavy beat when there is one; a beautiful stillness when there's not.
Music takes away all of his worries, hurts and despair. It something is wrong, music will soothe him.
/End/
The music is always there.
I make no comment. (Or excuse).