The first song that Claire heard from Dian, one of the members of the traveling music troupe Euphrosyne, who she was sent to find and invite to the Tenba Headquarters by her boss at the time, Crew Atha. It doesn't possess any real magical effects, but it soothes the hearts of its listeners and it's partially based on the same ancient Moon Chanter requiem that was used as the basis for EXEC_SUSPEND/.