The settings and characters are extremely varied, and each episode has music of its own. For example, ‘How Does Your Garden Grow’ has music that is severely Russian, together with distorted variants of the nursery rhyme. ‘The Double Clue’ also has Russian overtones, but this time they are very romantic, to depict the Countess of whom Poirot is so enamouted. For ‘The Mysterious Affair at Styles’ there is music representative of the First World War, and, by contrast, of the tranquil English countryside. In ‘The ABC Murders’ I have used the musical motif A-B-C as the basis of the while score, and a distorted nursery rhyme turns up again in ‘One-two, Buckle My Shoe’. ‘The Plymouth Express’ contains an horrific murder during a train journey and ‘Death In The Clouds’, a strange death on board an airliner. – Christopher Gunning, taken from the original liner notes.