#VocalFam this is a must listen for those of you who are either interested in voice registration or who want to know more about Complete Vocal Technique (CVT). Today, Alice, Sarah, and Dr. P were joined by Dr. Mathias Aaen, a certified CVT voice teacher, but also the head of CVT's voice research efforts. Mathias has already put together quite the significant output of research articles, presentations, and other professional work. Along with Marek Frič they published a new study last June titled "Going Beyond the Register - Vocal Mode Categorization Across Four Octaves in Professional Male and Female Singing Using Voice Range Profile, EGG, Acoustic, and Vibroacoustic Measurements: Double-Case Study," in Journal of Voice. This paper is one we all should read.