>>112233352It's kind of weird.
MOST of the time, there's two different directors and/or traductors; the normal one, and a "musical" one, who is in charge of the singing parts.
Something even more weird, it's that sometimes they end up using two groups of actors as well (mostly when it's a big-name product, so they end up casting famous people with limited vocal talent).
As about the instrumental music itself, well, I'm not sure if this has changed, but, back in the 90's, most of the dubbing studios just received the full "mixed" audio tracks.
Like, background noises, sound effects, music, etc, all together.
With only the voices missing, so they could, well, make the dub.
>tldrOnly big companies can afford to get the whole thing.
Mostly Disney, who has it's own dubbing monopoly.