Which Beatles song was directly influenced by Bach?

In their early years The Beatles were largely indifferent if not hostile to classical music.
Paul and George had however learned one classical 'party-piece' at an early age:  Bach's Bouree in E minor. This would form the basis of one McCartney's best loved songs

Part of its structure is a particular harmonic thing between the melody and the bass line which intrigued me. Bach was always one of our favourite composers; we felt we had a lot in common with him... I developed the melody on guitar based on the Bach piece and took it somewhere else, took it to another level, then I just fitted the words to it.