Q: What's the chord at the beginning of a hard days night?
A: sounds like G7sus4, feels like D is in the bass but that's just what i would do. listening it sounds like the bass is playing D but you can hear a low G on the piano. i don't hear any notes in this chord besides c, d, f, g. i hope that answers your question. if i were doing it in my band i would say G7sus4 over D. or Dminor11 no5 if you prefer