Just as an example: instructor Mike Oleskshy's lesson on ZZ Top's 'Gimme All Your Lovin'............... I believe he never says "in the key of C". It sounds funny, but, it actually took me a frustrating time to find the button that says "notation" (now, of course, I'll try to remember where it is and to use it.) so I can see the sheet music/tab (which, of course, the key signature shows the song is in the key of C)..........But, again, wouldn't it be better if the instructors would just go ahead and say, in about two seconds, what key the song is in? This example, in Key of C, is actually a simple one.......sometimes its more complicated. I like Olesckshy and others a lot. I just used it as an example. Thanks. I like the website overall.