Why did they not tell us?

Playing on the high wires of space-time
Holding time back for an instant then diving
Into the unmapped depths  and deeps
Pulling space here and there
Why did they not tell us, music has its own geometry
Like  on the Spanish guitar , one second is not the same as  another
One holds back then runs, another steps out and waits.
It’s the mild tension and music in our bones that makes us sing and dance.
And they try to capture this on graph paper, oh so neat!
Maybe that is just to stop us falling off the edge of the world
As we gyrate.And is this not what the birds say in their whirling?
As we trudged home from school was it not this we  longed for?