Ringimancy

Elemental magic with power over sounds.
Ringimancy is also a part of the Illusion school. 
Magic users skilled in ringimancy are known as ringimancers or pitch mages.
Also: Pitch magic
Ringimantic Spell Types:
Conjure Sound – The creation, formation, or generation of sound waves (varying types, including the voices of people and animals) purely from the aether, as conjuration magic.
Generate Sound – The creation of sound from existing sound waves or other existing natural vibrations. 
Alter Sound – The alteration of sound into varying wavelengths, frequencies, etc.      
Audiokinesis – The kinetic control of sound waves. 
Animate Sound  –  To bring sound to life, or into automation, the highest beings of which are noise elementals that use their own ringimancy.
Part Sound – The division or separation of two areas of sound, with a quiet area between. 
Wave Travel – The speedy travel with sound waves in linear fashion.  
Wave Shaping – To manipulate or shape materials with sound waves using ringimancy.
Sound Break – The sound waves or vibrations used to destroy other objects (ex: sound waves that create heat and friction, or sound breaking apart or shattering material).     
Anti-Magic Noise – The generation of magical noise that interferes with the target's ability to cast spells. 
Spell Breach – The emission of sound waves that break up magic spells into fragments. 
Soundstorm – A deafening storm of sounds and vibrations at violent and deadly frequencies that wreak destruction.