The score of the beginning first movement of Mozart's KV310 sonate can be seen and heard here.

The first bar is the chord a minor, but what about the second bar (mi sol# si re la)?

  • 1
    The a is not part of the chord, but a pedal point; can you answer your own question now?
    – 11684
    Commented Dec 13, 2019 at 23:49

1 Answer 1


E7/A. As @11684 commented, a tonic pedal. A common device in Classical music, where the architecture depends very much on firmly establishing the tonic tonality before contrasting with it.

Dominant pedals are also common.

  • Interesting. I suppose it's a tonic pedal because the pedal note is A. - Could one also take an other note for a (non tonic) pedal? - Was the tonic pedal used because the A is already present as lowest note in the first bar?
    – Karlo
    Commented Dec 14, 2019 at 22:08
  • You can indeed. The dominant, for instance.
    – Rhys
    Commented Dec 19, 2019 at 14:22

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