Ring out, ye crystal spheres, Once bless our human ears (If ye have power to touch our senses so), And let your silver chime Move in melodious time, And let the bass of Heaven's deep organ blow; And with your ninefold harmony Make up full consort to th'angelic symphony.

-Milton,John
  'On the Morning of Christ's Nativity','The Hymn', stanza13.

Seated one day at the organ, I was weary and ill at ease, And my fingers wandered idly Over the noisy keys; I know not what I was playing, Or what I was dreaming then, But I struck one chord of music, Like the sound of a great Amen.

-Proctor, Adelaide Ann pseudonym of  Mary Berwick
  'The Lost Chord'.