sounds of sadness

sixty hertz the human heart beat
when calm
eighty hertz stressed and sad
convolved with a forty hertz shiraz
and a ninety hertz champagne
twin sisters at 150
a brother at 30
a sister-in-law at 45.
the coupled Fourier transform irregular
and unstable
it's sadness when the world is topsy turvy
with so much uncertainty and my heart
is heavy and optimistic at once
what frequency is that