|Fresco by Geburt Christi Pescoller (Sr) - Courtesy of Wikipedia|
Christ is Here, Emmanuel! is written by the Benedictine Nuns of Stanbrook Abbey. In the Divine Office (1974) it is sung during Christmastide before Epiphany. The recommended tune in the Office is Ravenshaw. That tune's hymn meter of 66.66 unfortunately does not match the text of Christ is Here, Emmanuel! An alternative tune that can be used in it's place is the plainchant melody featured in the following video.
Alternative Tune: Plainchant (Mary Crowned with Living Light)