I think you got this wrong. Usually you use one electronic musician to create all the background music (or license pre-existing popular music), and with music AI you make that musician more productive. It is not like non-musicians will even be able to select the bad from the good of the AI output. It takes a trained ear to build functional AI music as well.
Nobody will hire live studio musicians or a symphony orchestra to create background music. Way too expensive.
Nobody will hire live studio musicians or a symphony orchestra to create background music. Way too expensive.