The volume can be varied more easily in the lower part of the voice than in the higher part, as you can usually sing Overdrive more quietly in the lower part. In the beginning the higher the pitch, the louder the volume becomes in this mode. Later, when you have obtained greater control of Overdrive, you can practise singing in medium volume in the mode. In medium Overdrive you will hear that the character often also becomes less ‘Overdrive-y’/’shouty’.