Lullaby for a dog #2

Back in 2007 as a kind of a joke, a friend of mine asked if I could make a song about his puppy. A rickety piano, a theremin and some shuffling about-sounds made a pretty funny tune back then.
A few months ago he called in again telling his dog was suffering from cancer. Not willing to go through months of chemo trying to make her life a tiny but longer, (her suffering would also be prolonged),