How to Improve Your Singing. If you want to learn to improve your singing, the first step is recognizing the importance of lessons. Even the most talented and experienced professionals take them. Singers who have been honing their craft for years know that the voice and the body must be trained to produce the best sounds. It all comes down to technique. To produce full, rich, high-quality sounds, you must learn the right physical techniques and vocal techniques. Physical Techniques that Lead to Better Singing lessons begin not with the voice, but with understanding how posture can impact your ability to produce clear tones. A slumped, curved back prevents your abdomen muscles from fully contracting and expanding.