Sorcery is a specific system that involves the deliberate manipulation of the symphony using free will and brute linguistic force. All Sorcery requires time and components, but with enough work Sorcerers can alter the symphony. Sorcery comes in 4 different disciplines, each of which have their own rituals.
Alchemy-Alchemy focuses on the alteration of material substance.
Exorcism-Exorcism focuses on the negation of celestial powers.
Necromancy-Necromancy focuses on the borders of life and death.
Summoning-Summoning focuses on the use of names to command ethereal and celestial beings.