The Art of Living...Abstraction

What's in an egg?
A song is there, in chemical notation,
invisibly packed into the genes:
Also detailed instructions for nest building,
a menu or two perhaps,
and a map of the stars...
All in the one cell that multiplies into many,
all the disposal
of the little feathered passenger,
so once hatched and fledged,
It will have more than a wishbone
To launch it's life...