Question on Weaver Spells and Facets

New to IS and was reading over the secrets to see what I'd want to work towards and I see there are a bunch of _ mage secrets such as Air Mage.

Those secrets reduce the sorcery bene cost of any spell with a specific facets by one.

My question is do Weaver Spells have facets? I have the Thunder aggregate and Master of Sound would fit quite well with reducing my sorcery costs. Going to check with my GM, but wanted some other opinions!