Paul McCartney opened up about how he wrote a lesser-known Beatles track with what he called 'naughty' chords.

Don’t let the complex-sounding names spoil your enjoyment! This chord could correctly be called F6 or Dm/F as both share the same notes (F D A D). The naming is a matter of preference and/or ...

All the chords built on other notes in the scale of C are minor, except chord VII - the notes B – D – F, which is diminished. When a seventh is added to a chord this is known as a seventh chord.