TONE 2
Pattern: ||: AB :|| X
Note that this pattern is different than tone 1 - we can go from A or B to the final melody, X (no need to ensure a complete repetition of the pattern). In future tones, X will always indicate the final melody at the very end when it's different from the rest of the pattern.
Model Melody: Resurrectional Troparion (When Thou didst descend to death, O Life Immortal)
Please see attached sample music and verses for Troparion Tone 2 in Common Chant, as well as an audio sample.