Walter Carlos no longer exists, he's in Elysium
But let us imagine him in our space-time continuum

Walter Carlos
International transsexual composer of that glorious epoch
The high analogue synthesizer baroque

He is now to be known as Wendy, he
Had a gender operation done
Just after making 'Switched on Bach, Volume 1'

And when traveling through time is possible
Wendy can enter a wormhole
And go back to the future to marry Walter
A few baroque summers earlier
A couple of models of Moog back in time

(Wouldn't that be fine
In the summertime
Tra-la-la-la-la)

Unfortunately
Einstein informs us
That when time travel is finally possible
There will be no returning to periods previous to the point at which time travel first became possible
So like Walter Carlos until such time as it's feasible
We'll have to restrict time travel to the realm of the musical