This is a good tidbit of information for artist that are curious about submitting their songs to Pandora and Sirius,and and who pays you for the airplay....
How Do Musicians Get Paid When The Music Is Played On Pandora or Sirius Radio
Musicians MUST REGISTER with SoundExchange in order to get paid royalties from digital performances. Digital performances include having songs played on Pandora or Sirius Radio. I know that you might think that being registered with ASCAP, BMI or SESAC covers this, but it doesn’t. Separate registration with SoundExchange is required to collect royalties when your music is played on digital and satellite music providers.
The link below is at a great site for musicians,created by none other than Herb Albert/A&M Records(ex-owner) and Tijuana Brass band...goin way back :-)