A Google+ (plus) logo is seen at Google's annual developer...

A Google+ (plus) logo is seen at Google's annual developer conference, Google I/O, at Moscone Center in San Francisco. (June 28, 2012) Credit: Getty Images

By offering music, Google is seeking to give consumers more reasons to use the Android operating system, already the most widely used software in smartphones. The company is also challenging online-music providers like Spotify, which lists more than 6 million paying subscribers and more than 24 million active users in 28 countries.

Google's plans to unveil the service this week were previously reported by The Wall Street Journal.

Google, based in Mountain View, California, climbed 1.1 percent to $887.10 at yesterday's close in New York, leaving the stock up 25 percent this year.

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Newsday investigation: Sex buyers go free ... Saving oysters in Great South Bay ... America 250: Nathan Hale ... Get the latest news and more great videos at NewsdayTV

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