Music magic
From Absit Omen Lexicon
Music magic is one of the oldest forms of magic. It may be used to banish, to bind souls, and to reanimate things and people that should not be alive.
Lorelei Hunt sings to lure in souls, capture them, and turn them into pentrals.
The Necromancer at Grimshaw's uses a bone flute and an old musical language of runes to ritually murder her victims every 28 years.
