My Harp Has One Unchanging Theme

My harp has one unchanging theme,
One strain that still comes o'er
Its languid chord, as 'twere a dream
Of joy that's now no more.
In vain I try, with livelier air,
To wake the breathing string;
That voice of other times is there,
And saddens all I sing.

Breathe on, breathe on, thou languid strain,
Henceforth be all my own;
Tho' thou art oft so full of pain
Few hearts can bear thy tone.
Yet oft thou'rt sweet, as if the sigh,
The breath that Pleasure's wings
Gave out, when last they wantoned by.
Were still upon thy strings.