Google is boosting its drive to become the number one search engine in China by launching a free music download service.
Google plans to sell advertising with the new service, splitting the revenue with music companies and Top100.cn.
It is Google's first music search service, but it will not be available to internet users outside China.
It could curb the illegal downloading of music in China. Google said, "We believe that this partnership will help foster a thriving and legitimate music business in China by providing music labels and publishers with a new channel to distribute, promote and monetise their valuable music content".
Google said that it had no plans to offer the service outside China.
Despite dominating search engines globally, Google is second in China to Baidu, the domestic internet business.
According to Shanghai-based iResearch, Baidu has 63% of the Chinese search market share, while Google has 26%.
Google aims to become the dominant player in the Chinese internet market within five years.