Hoping to keep itself more competitive than rival carriers, T-Mobile today added a handful of new services to its “Music Freedom” program.

Music Freedom is a T-Mobile promotion that allows its subscribers to listen to their favorite music service without having it count against their monthly data cap. The program was initially rolled out back in June, along with a new Rhapsody-powered T-Mobile music service.

The unlimited music data was initially offered for Spotify, iHeart Radio, Rhapsody, Pandora, iTunes Radio, Samsung Milk, and BeatPort. As of today, the company is adding Rdio, Google-owned Songza, AccuRadio, Black Planet, Grooveshark, and Radio Paradise.

And since the majority of folks probably don’t recognize those last few services, it seems like T-Mobile would eventually like to get all streaming music services on board. This includes Google Play Music All Access, which T-Mobile customers voted as the No. 1 service they’d like added to the Freedom program — even though it didn’t make the cut, yet.

While it’s too early to say if the Music Freedom strategy is working for T-Mobile, the company did say that its customers have streamed almost 7,000 TB of music data since Music Freedom launched.