spotify connectivity

Hello,

I don't understand why we can not use Spotify on Pioneer for playing private party or training our self on DDJ400 for exemple.

Because You add the connectivity with soundCloud and it's the same principe of streaming. Because we can also pay 5$ per years for contributions to the artist and you pay Spotify if your are premium for no pub et contribution... so why we don't have that connectivity?

the only objectif it's playing music. make the facility please!

Thank's