Block models can change breaking/stepping sounds

Right now, block models can change a block's shape, its textures and what particles it makes when it is mined or stepped on, which pretty much allows to make custom blocks. This suggestion would extend this to what sounds it would make when a block is being mined, stepped on or falled onto.
The sounds a specific block makes can already be changed through modifications of the sounds.json file, however, this does not allow to make it work when alternate block models or different blockstate models are used.