Another quick example: Tom Finch's lesson on Joan Jett's Crimson and Clover...I watched it just a few minutes ago, (now, yes, now, I know where the 'notation' button is.....but).....But why not just say what key the song is in........This, again is in C.......but my experience is your instructors do a good job of gear, tone, tempo, etc., but don't make a point to actually say what key the song is in. thanks