Full title reads: "Australia. Milk with music! - but imagine him at your door at 6 o'clock in the morning!"
A milkman with a horse and cart delivers milk to a street in Australia. He yodels and sings very loudly. Nice closer shots as he delivers milk to a woman standing outside her gate.
As he rides away he picks up his guitar to accompany his tune. The rather overawed customer lets her milk pour from her jug into the gutter.