The following links connect to major Orthodox websites for Pascha information.
Troparion – orthodoxwiki.org/troparion (this site is maintained by an OCA priest but broadly represents aspects of most Orthodox faiths)
The Troparion in short is a hymn of the day, the words relate to which day in the Church calendar it is sung upon.
This first English variation is the slow version, we sang a faster version Pascha morning for prayers for breakfast. There are 8 tones (melodies) for our music, and many variations that we sing: Byzantine, Georgian, Russian, Greek, Bulgarian, etc. So each is a bit different in melody, but the words are the same. (courtesy of Lesa Morrison)
Holy Pascha Music (from Greek Orthodox site)
Listen to the music used in Pascha with the resources on this website. http://lent.goarch.org/holy_pascha/listen/
The Great and Holy Feast of Pascha –
The above site contains informative descriptions, from a Greek Orthodox perspective, of the celebration of Pascha.
Easter Sunday: The Holy Pascha
Orthodox Church in America’s (formerly Russian Orthodox in Alaska) website about Pascha observances.
Great and Holy Pascha
Antiochian Orthodox website describing Pascha from their perspective.
The Paschal Sermon of St. John Chrysostom
This sermon is a part of most Pascha services. http://lent.goarch.org/messages/pascha_stjohn.asp
Fasting and Great Lent
This Antiochian site describes fasting in general and with a great degree of specifity during Great Lent and ending at Pascha.
Complete Russian Orthodox Pascha Service – 2016
This video, over 3 hours long, shows the Russian Orthodox Pascha service in Moscow earlier this week. It was attended by the Russian president and illustrates the beautiful blending of music and liturgy during these services.