They inhabit each other.
Silence is given meaning by the music built around it.
And much of the meaning of music resides in the unique character of silence that it engenders at its end. As I was reminded at a Prom recently, this is a truth unknown to those who begin clapping on the very instant that the music has stopped sounding. A work's one true live performance, with seconds of contemplative reverberance dissolving into stillness, can only happen on its world premiere - as happily was the case with David Matthews's thrilling Fifth Symphony, when the philistines were not forewarned of the finish. Hereafter, one glumly supposes, it is doomed to violent truncation. Divorced from the taming, creative influence of music, silence becomes an avatar of despair.