Having Suffered/ Preterp'ivyj which is sang after the conclusion of Pre-Sanctified Liturgy in those parishes of Carpathian mountain descent (Ukrainian Greek Catholic Church, Ruthenian Byzantine Catholic Church, ACROD, I'm not sure about the Ukrainian Orthodox parishes).
I like our tradition of chanting the psalms antiphonally ( the whole congregation chants them) during Pre-Sanctified. Most of our services are always sang by the entire congregation in Carpathian Plain-Chant/prostopinije. Many if not most sing from pure memory, if not everyone has the music right there with them. It is uplifting and wonderful to hear everyone singing as one.
Having Suffered lyrics, they are simple, but the melody is beautiful and you sing it three times and prostrate between each time you sing it:
Preter'pivyj za nas strasti, Isuse Christe, Syne Bozij, pomiluj nas, pomiluj, pomiluj nas
Having Suffered the passion for us, Jesus Christ, Son of God have mercy , have mercy, have mercy on us.
It's simple but you should hear the music for it, it's pretty.