Multiple songs' audio_profile in a single call?

song/profile lets you retrieve audio summaries for multiple songs in one call. I'm not familiar with the Ruby wrapper, but perhaps there is a way to supply multiple id parameters for the songprofile method.

http://developer.echonest.com/api/v4/song/profile?api_key=API_KEY&format=json&id=SOCZMFK12AC468668F&id=SOSORUO143EB07C209&bucket=audio_summary

David