The theme music was composed by Vernon Pelling Elliott (27 July 1912 - 12 October 1996).
He was a British bassoonist, conductor and composer.
Elliott took up the bassoon at a very early age and was a founder member of the Philharmonia Orchestra, a regular player at the Royal Opera House, a much-valued member of Benjamin Britten's English Opera Group orchestra, a conductor of the Royal Philharmonic Orchestra, and a longtime professor at Trinity College of Music, London.
He was asked to help Oliver Postgate by writing a bassoon theme for Ivor the Engine.
He went on to compose the highly evocative music to the Smallfilms productions of Noggin the Nog, The Seal of Neptune, Pogles' Wood, Pingwings and Clangers.
An album of his music for Ivor the Engine was released in 2001.