Vocal Warmups for Great Technique is a simple step-by-step set of warm-up exercises . Learn an effective warmup technique that you can use daily to continuously improve the strength and performance of your singing voice . Eliminate vocal strain and increase your range . Sing through your break and more effectively connect your head voice with your chest voice . Sing with confidence! The warmups are simple basic warmups for the singing voice, explained in detail by voice teacher and professional singer Robert Lischetti . Learn how professional singers learn to improve their vocal range, and how they learn to sing with consistent power and confidence . Use these simple warmups to improve your voice .Authentication failed. Unique API key is not valid for this user.