Christ is born!
The liturgical calendar for 2017 is now on the MCI website. Please be aware that this year, I am planning to update some of the proper music for fix typos, correct some bad phrasing, and so on. Whenever older music is updated in this way, I will add “Last modified on <date>” on the bottom of the first page.
Cantors should also order (and learn to use!) the annual typikon from the Byzantine Seminary Press:
http://www.byzantineseminarypress.com/2017-annual-typicon/
This booklet has detailed directions for the hymns to be sung at each major Divine Liturgy in the year. In January, the MCI will put explanatory and practice material to help you learn to use the typikon.