Aira of Requiems

This spell is not learnt, it is given.
To cast this spell, one must be bound to or following a being of higher power, (Gods, Demons, Eldritch Horrors etc)

If cast as a ritual, Caster sits in a battlefield, and pulls out their instrument, reaching out towards unclaimed souls of the deceased, and promising them salvation beyond. 
The unclaimed souls are compelled and drawn to the song. 
This Aria sends them to the god that you worship, or to the plane where the caster primarily resides. 
The caster must choose a song, and the song must remind them of the god or plane.

Performance check to compel the souls using your Spell casting ability
Arcana, Religion, Nature Check depending on Location or God.
DC up to DM's discretion,