Update (for everybody who cares). According to
Discogs there are over 10 Blizzards and variation on Blizzard. It looks like I can use
Blizzard without problems. But I think I'll rather go with
Blizzard Zero to be distinguished better. I'll see. In any case I'll sign up at
TuneCore and they will distribute my music to several online stores. I'll do that after New Year (so I don't have to pay the annual fee right after New Year again).