New 2013 pro BB user here.When I click on the soloist button & Open soloist dialogue to choose midi or.....And then I select randomly from the list & press ok.A yellow screen shows up saying I ' do not have the realtrack meant for this style'.Does it mean I do not have it properly from the single dvd that came with BB pro or do I need additional tracks to be purchased?

What does it mean to 'choose midi or real tracks" .Are there any midi tracks available?
Pls explain.