You can pair music to the Sena, priority wise, phone will override the music. I cant remember where intercom factors in with the priority. After the phone disconnects it will go back to music. Unfortunately you can't bluetooth the music or phone conversation to two headsets, only intercom between. My music is on my cellphone, so I'm only pairing one device. If you both want/can listen to the same tunes, you could hardwire with a y cable?
HTH