8 VOCAL TECHNIQUES TO MAKE YOU SING LIKE A PRO! 1. Slur It indicates that 2 or more notes are to be sung on a single syllablesl, often involving a smooth, connected sound. It is gliding through 2 or more notes on a syllable in a connected ascending or descending pattern 2. Vibrato It is a wavering or pulsing in the pitch of the voice. It adds expression, warmth, and richness to the singing voice 3. Vocal fry It is the lowest register of the voice produced by a very slow and loose vocal cord vibr