fdhghgsjsjhderi.. er.. OK, in Jazz's lesson, I'm going over it. The major scale is made up of this formula - T, T, S, T, T, T, S. Why is the D-E a semitone? And B'-C' a semitone?? I figured out that the white-to-black note son pianos/KB's = semitones, right? So I don't undertsnad why in the Cmaj scale these are semitones.. PLease explain, thanks!