St Seraphim of Sarov is not on the Melkite calendar. Not because he is Orthodox and we are not, there are many saints on one churches calendar but not on anothers.
He is on the Russian calendar. I dont recall the date right now. But you should try to get to Vespers and Mattins at a Russian or OCA church for his feast…you will hear much more then just his troprion at those services.
DISCLAIMER: Catholic Answers has turned over the archive to Catholic-Questions.org and no longer owns, manages, or moderates the forums. For additional apologetics resources please visit www.catholic.com.