The Vigil of the Epiphany was abolished in 1955, but restored in 2002 in the Novus Ordo Calendar (at least where it is not celebrated on the Sunday only!). It is unusual in that it was not a day of fasting, in keeping with the season.
Here is a musical offering by Palestrina in keeping with the season.
The words are:
Surge, illuminare, Jerusalem,
quia venit lumen tuum,
et gloria Domini super te orta est.
Quia ecce tenebrae operient terram
et caligo populos.
Super te autem orietur Dominus
et gloria eius in te videbitur.
Arise, shine, Jerusalem;
for your light has come,
and the glory of the Lord has risen upon you.
For darkness shall cover the earth,
and thick darkness the peoples;
but the Lord will arise upon you,
and his glory will appear over you.