Paul McCartney was dissatisfied with the initial attempts at the song's instrumental fill (one of which is released on Anthology 2), and was inspired to use the instrument after hearing Mason's performance in a BBC radio broadcast of the second Brandenburg Concerto and asking George Martin what the "tremendously high" trumpet was.
Paul McCartney non estaba satisfeito cos primeiros intentos da canción instrumental (un dos cales se publicou en Anthology 2) e decidiuse a utilizar o instrumento despois de ter oído o rendemento de Mason na radio da BBC do segundo Concerto de Brandeburgo e pediulle a George Martin usar a "tremendamente alta" trompeta.