Angel Song

Angel Song, also known as Seraph Song, is a recurring ability in the Final Fantasy series. It is a song usable with the Sing command, and heals the party in some manner.

Final Fantasy Tactics
Seraph Song is sung by the Bard, and restores MP to all allies.

Final Fantasy Tactics A2: Grimoire of the Rift
Angelsong grants Regen status to an ally within a range of 4. It costs 200 AP to master.

Final Fantasy Dimensions
Bards can use Angel Song when using the Sing command. It restores HP and MP to all allies while the Bard sings.