The companies were pretty vague as to how Pandora Now will work. It will apparently use a mix of Pandora user ratings and SiriusXM curation tools to determine what will be played on the station. Pandora Now will aim to play music across all genres including pop, hip hop, R&B, dance and Latin. Obviously, the mix will wind up being a bit different for listeners using the interactive station on Pandora rather than those listening to the curated playlist or radio version. The feature appears to be SiriusXM's first attempt to make good on its promise to use Pandora's music discovery tools to create new stations.