I am brand new and having fun working my way through Core Level 1. I have a question about tabs and notes. As I learn to play the practice tunes and riffs should I be memorizing the actual notes being played or just learn the songs by the tabs? Is that important at this point? Wondering if I need to back up and learn what the actual note is when I see a specific tab on the music sheet. If I stop and think about which string and fret the tab indicates I can convert to a note, but I cannot do that quickly in my mind at this point. Thanks...