Used by MR WACKER in lesson 0xFE, by MR ROCKITT in lessons 0xE0, 0xE1, 0xF7, 0xF9 and 0xFE, by MR WITHIT in lessons 0xF7, 0xF8, 0xFA, 0xFB, 0xFE and 0xFF, and by MR CREAK in lessons 0xE0, 0xE1, 0xE2, 0xE3, 0xF1, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFE and 0xFF.