The current release version of Gospel Library for Windows does not yet have multimedia playback features, like the audio playback you’ve mentioned. This feature is available, in an incomplete, as-is state, in the beta version of Gospel Library for Windows, which you can download at the link below:
http://apps.microsoft.com/windows/app/g ... eeec2a95b2
Note that you will need to go into the settings for the beta application and enable preview features before they will become available.