A Rhapsody subscription is not required to listen to tweeted tracks, or to reshare those tweets containing audio cards on the social network. Only registered users will be able to tweet tunes from within Rhapsody, however. Subscribers should see a blue Twitter symbol in the Rhapsody platform, which sends out a tweet with one click.
The streaming service is promoting the new feature through collaborations with performers, such as Pearl Jam and Wiz Khalifa. These artists tweeted out Rhapsody audio card songs today. The initial launch of the audio cards is only on mobile platforms; the feature is not enabled yet on web browsers.
The launch coincides with the start of the SXSW Music Festival. Some of the artists helping to promote the feature are performing at the event.