Artifact -
Choral Roundlet
Choral Justacorps
Choral Cuffs
Choral Cannions
Choral Slippers

Relic -
Bard's Roundlet
Bard's Justacorps
Bard's Cuffs
Bard's Cannions
Bard's Slippers

Empyrean -
Aoidos' Calot
Aoidos' Hongreline
Aoidos' Manchettes
Aoidos' Rhingrave
Aoidos' Cothurnes

Sorry, I'm not seeing the pattern. It's called artifact armor, relic armor and empyrean armor.

And I don't really see the need to upgrade artifact armor right now really, the +1 were a big upgrade for a lot of pieces and hopfully, the +2 relic will be as big an upgrade for them. Kind of curious to see what the stats are going to be though.