Well my server is a bit goofy so it might not work. But so far it didn't appear automatically in the configs. I made a custom config and tried adding it myself to melody but couldn't get it to fire. I also got it showing up in Combat but it doesn't trigger.
I also added it to a few different AbilitySets and then put it in rotations with different Types. But I couldn't get it to work. Some of them crashed it.
This one appears but doesnt seem to trigger:
{
name = "Denon's Desperate Dirge",
type = "ChordsAE",
},