This video (no sound) gives you tips on searching for music scores & recordings using basic and advanced searching in BSU's CardCat.: http://www.youtube.com/watch?v=r2gZNtVkets
It is also available as a fully animated Powerpoint 2007 presentation on ilocker (no log-in required): https://ilocker.bsu.edu/users/aledmonds/WORLD_SHARED/Searching_CardCat_Music.ppsx
As always, you can contact me for further assistance if these tips don't answer your questions.