My song is "Zero-Sum"

My song is "Zero-Sum".
(Such situations are rare.)
Did you hear a
bear's voice?
God gave me a
bear's voice.
Halla la la la la lay lu yuh.
Zero-sum me a-uh all the mornin'
Zero-sum me, build it up,
A Situation of tiny proportions,
which I can fit in my great, great pocket.