Briefly: You can soon sign up for the Google Play Music family plan announced earlier this spring. Rolling out in Australia over the next few days, $US15 ($21) connects up to six accounts to Google Play Music. Considering Google Play Music ordinarily costs $12 per month, this is a great deal. (Although, the logistics of splitting the cost between 6 people are impractical.) I should note that both Spotify and Apple Music offer similarly priced plans.