Infernal Musicians

Cacosinger - primary Cacophony user
The creation of cacophonic energy requires the disruption of sound via sound. Cacosingers can use their voices (or instruments) to turn any sound into dissonant, painful noise, and thus wield it by casting the cacophony vocally.

Cerddor
An Aeldian court musician.

Ghost Singer
A necromancer who commands phantasms with their voice, or singing phantasms.

Malmusician
A demonologer who made a deal to be a great musician.

Meistersinger
A genetically designed supersinger.

Pevchy Dyak
Vesturian singers in the czarina's court, often empowered by slaves.

Trouvere
An aristocratic singer among the gens bas.