CHAPTER 4 - PITCH (Part 2) Grade 1 Theory – Pitch (Part 2) This chapter introduces pitch for grade 1 theory, chapter 4. You need to understand: Accidentals (Sharps, Flats and Naturals) Semitones and Tones After watching the videos, you should be able to complete chapter 4 in your workbook.PLEASE NOTE THAT SOME OF THE VIDEOS DO NOT HAVE NARRATION SO YOU CAN WORK THROUGH THEM AT YOUR OWN PACE! Tones and Semitones Accidentals (Sharps, Flats and Naturals)