4/4 TIME

Musicians have a clock
that runs on its own time
and all that is constant
is the beat, in four
second increments.
They start, they say,
when the music
is ready, never before
and music is fickle:
tonight it wanted to sit
off stage and rest
an hour, another night
it begins precisely
as advertised
and it ends, always
and invariably,
after the last note
plays itself.