I have hundreds of songs that I have downloaded to my ITunes from CD's that I own. I heard that unless a song is directly purchased from ITunes it will not play or find the correct tone for you on the Amplifi, is this correct? Also, if I find a tone I like for a specific song can I directly store it to the amp itself or a foot controller like the Line 6 FBV shortboard MKII foot controller or Amplifi FX100 Amp/effects Modeler floorboard. That way I can use it when I'm not connected to the internet?