Thank you David and Monica.
I am afraid that you and I
Will here never see eye to eye...
I agree about the sighing motive, though it does not always seem to come out as it should. I shall try to reinforce this in future.
I follow the ornamentation that is suggested, with one minor variation, because it must have been a copyist error. I am not sure I would like any less in the first statement of A and B and I am not sure I would like any more in the repeats, though now there is a passing mordent playing in my mind's ear and it does not sound too bad...
You say it is none too adventurous and I agree there and that is part of its charm, a charm which is reinforced by the shortness of the piece. Were it longer it would stretch my patience too.
I have not unearthed the other recordings of this, but if my memory does not fail me this one is faster. It is marked Largo, you know, not presto furioso!