I'm going to post the chords I use here. This song requires a delicate touch - sometimes a note does not harmonize, and you have to let the accompaniment die away. It is a waltz in 3/4 time, and waltzes often have a sweet dissonance to them anyway.

I (that's a pick-up note)
C once loved a maiden so
F gentle and kind, as
G sweet as the
F rose in the
C dew. Each night as we wandered, the
F moon seemed to smile on
G me and my
Dm loved one so
C true. And so proud was
F I, when folk passing
C by Would gaze on the
F flow'r of the
C day. And so for her beauty, her
F sweetness and charm, I
G called her the
Dm Rose of Moray
I called her the Rose of Mo-
C ray