Pastoral poetry. Everything Doric was very plain, but cheerful, chaste, and solid. The Dorians were the pastoral people of Greece, and their dialect was that of the country rustics. Our own Bloomfield and Robert Burns are examples of British Doric.
The Dorie reed once more Well pleased. I tune.
Thomson Autumn. 3-4.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894