Mahler One

This boulder doesn’t have to be
bigger. There are other,
bigger boulders.

There is one Symphony One
by Mahler. There is a Symphony Two,
too, but one One.

There are only four parts to Titan.
No more are called for but four.

And as the rules go around here
There is no more Mahler.
He is dead, and that is perfect.

Seems foolish to want
more Mahler,
and this boulder bigger.