One of the great English folk songs, with some lines that remain magical however often you hear them. Influenced by Tony Rose’s rendering and by Shirley Collins’s wonderful treatment of this song as part of the “Anthems in Eden” suite; no song lives up to that title better than this one.
Accompaniment: melodica, zither, D whistle. Generally I pitch tunes wherever they’re most comfortable, but when I tried that with this one it seemed to be in Bb minor (or possibly Db major), which would have been a swine to play on the keyboard and more or less impossible on whistle. So I braced myself and ratcheted it up a tone and a half to A minor (or C major), which is much more congenial. (There aren’t any Fs, for anyone who was wondering.)