ocr: TREMOLO ARM DET. AGHARLE ARM Acontols the tremolo unit whichis used to alter the pitch of the strings while you play.Pushing down on the arm causes the bridge unit to tilt torward, w hich changes the tension of the string and lowers its pitch. Releasing the atm returns the strings to theit usual pitch. t IREMOLO ARm Moving the arm up and down grver the vibrato effect. However, itis mainly used for aimulating bending effetts in rock and - dive-bombing techniques.