The Browning love story? It is an ideal, all too rare, and yet I hardly think it strange. It would have been far stranger had the fates allowed those two brilliant passionate souls to beat themselves out in silence.
If it's total freedom, I guess the ultimate thing you can go into is total silence between the audience and performer, with the performer projecting something he doesn't even have to play.
The world is never quiet, even its silence eternally resounds with the same notes, in vibrations which escape our ears. As for those that we perceive, they carry sounds to us, occasionally a chord, never a melody.
There is no such thing as an empty space or an empty time. There is always something to see, something to hear. In fact, try as we may to make a silence, we cannot.