To bad mistakes are made in this course. He points out semitones while it is a tone etc....for example Tutorial 2 - Major Scales at 5:26. D3 to E3 he calls a semitone A3 to D3 also a Semitone, while it is a tone. E3 to F3 a tone, while its a semitone. He repeats this 4 times without correcting. The scale T-T-St-T-T-T-St is correct! Only if you start at the first note after C, and not on C. For someone who is a beginner dificult to correct or understand.