All Creatures Great and Small is a popular television series, based on the books of the British veterinary surgeon Alf Wight, who wrote under the pseudonym James Herriot. The theme tune "Piano Parchment" and incidental music was by Johnny Pearson.
Johnny Pearson (born June 18, 1925, Plaistow, London) is a British composer and pianist. He has written a vast catalogue of library music, and has had many of his pieces used as the theme music to television series, including All Creatures Great and Small