A song about
your dog.
Dogs are easy to write about because they do things. They bring you a shoe. They steal a baguette. They bark at the parrot next door and hide from the vacuum. Three of those and you have a song that could only be about yours.

Biscuit, a beagle of four: fire-siren howl at the door, one shoe never matching, a whole baguette gone off the counter.

Does the song mention the breed?
Only if the breed gives an image — a dachshund's length, a husky's howl. Otherwise the lyrics stay with what your dog does, which is what makes the song theirs.
My dog is a mix. What do I write for breed?
'Mixed' or leave it blank. Breed is optional; the three details on the third screen are what matter.
Can the song be about two dogs?
Yes. Add a second dog on the first screen; both names go in the chorus.
What if my dog has died?
There is a separate, quieter flow for that, with different questions and no cheerful voices. Start at /for/memorial.