The title came to me while I was improvising, as I created holes in the sound by pausing very brief moments, letting the acoustic of the building do its own speaking.
Tutti button used, with stops added (the tutti doesn't add all higher mixture stops, but I added them).
NOTE: The title used to be :"Sound Holes"; based on Dr. Maier's recommendation, I have changed it now to "Sound Echoes."
Better?