This app such as songs and Podcast you are listening in iOS music app, just tap the "Share this music" from today menu in the notification area, you can easily share the song information to friends and acquaintances.
In addition to SNS services, Message and e-mail, You can share even with a third-party application to another if iOS8.
"Recommend songs you are listening to alone at this moment to friends who are far away. Enjoy music even more."
Use in today extension.
Thats all.