DS4 has a non premium spotify account, which is used to play music in the gr and during other festivities. Due to a fix on the gr pc we do not have spotify ads on that pc. (For those interested: this is done by editing the hosts file, which can be done on all major OS's)
You can login with the following credentials:
You will notice the account already has some playlists such as coffee, rocoffee, Huischplaylist, HW '18 etc. Feel free to make other playlists yourself.